Calculus Volume 2
17th Edition
ISBN: 9781938168062
Author: Gilbert Strang, Edwin Jed Herman
Publisher: OpenStax
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Textbook Question
Chapter 7.2, Problem 88E
For the following exercises, find
88.
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Students have asked these similar questions
Question 4
Fourteen individuals were given a complex puzzle to complete. The times in seconds was recorded
for their first and second attempts and the results provided below:
1
2
3
first attempt
172
255
second attempt 70
4 5
114 248 218
194 270 267 66
6 7
230 219
341 174
8
10
9
210 261 347 218 200 281
199 308 268 243 236 300
11
12
13
14
140
302
a. Calculate a 95% confidence interval for the mean time taken by each individual to
complete the (i) first attempt and (ii) second attempt. [la]
b. Test the hypothesis that the difference between the two mean times for both is 100
seconds. Use the 5% level of significance.
c. Subsequently, it was learnt that the times for the second attempt were incorrecly
recorded and that each of the values is 50 seconds too large. What, if any, difference
does this make to the results of the test done in part (b)? Show all steps for the
hypothesis test
Question 3
3200 students were asked about the importance of study groups in successfully completing their
courses. They were asked to provide their current majors as well as their opinion. The results are given
below:
Major
Opinion Psychology Sociology Economics Statistics Accounting Total
Agree
144
183
201
271
251
1050
Disagree
230
233
254
227
218
1162
Impartial
201
181
196
234
176
988
Total
575
597
651
732
645
3200
a. State both the null and alternative hypotheses.
b. Provide the decision rule for making this decision. Use an alpha level of 5%.
c. Show all of the work necessary to calculate the appropriate statistic. |
d. What conclusion are you allowed to draw?
c. Would your conclusion change at the 10% level of significance?
f. Confirm test results in part (c) using JASP. Note: All JASP input files and output
tables should be provided
Question 1
A tech company has acknowledged the importance of having records of all meetings conducted.
The meetings are very fast paced and requires equipment that is able to capture the information in
the shortest possible time. There are two options, using a typewriter or a word processor. Fifteen
administrative assistants are selected and the amount of typing time in hours was recorded. The
results are given below:
1
2
3
4
5
6
7
8
9
10
11 12 13
14
15
typewriter
8.0 6.5
5.0 6.7
7.8
8.5
7.2
5.7
9.2
5.7 6.5
word processor 7.2 5.7
8.3
7.5
9.2
7.2
6.5
7.0
6.9
34
7.0 6.9
8.8
6.7
8.8 9.4 8.6 5.5 7.2
8.4
a. Test the hypothesis that the mean typing time in hours for typewriters is less than 7.0.
Use the 1% level of significance.
b. Construct a 90% confidence interval for the difference in mean typing time in hours,
where a difference is equal to the typing time in hours of word processors minus typing
time in hours of typewriter.
c. Using the 5% significance level, determine whether there is…
Chapter 7 Solutions
Calculus Volume 2
Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - The Witch of Agnesi Many plane curves in...Ch. 7.1 - Travels with My Ant: The Curtate and Prolate...
Ch. 7.1 - Travels with My Ant: The Curtate and Prolate...Ch. 7.1 - Travels with My Ant: The Curtate and Prolate...Ch. 7.1 - Travels with My Ant: The Curtate and Prolate...Ch. 7.1 - Travels with My Ant: The Curtate and Prolate...Ch. 7.1 - For the following, exercises, sketch the curves...Ch. 7.1 - For the following, exercises, sketch the curves...Ch. 7.1 - For the following, exercises, sketch the curves...Ch. 7.1 - For the following, exercises, sketch the curves...Ch. 7.1 - For the following exercises, eliminate the...Ch. 7.1 - For the following exercises, use technology (CAS...Ch. 7.1 - For the following exercises, use technology (CAS...Ch. 7.1 - For the following exercises, use technology (CAS...Ch. 7.1 - For the following exercises, use technology (CAS...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, sketch the parametric...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, convert the...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - For the following exercises, the pairs of...Ch. 7.1 - Show that x=h+rcosy=k+rsin represents the equation...Ch. 7.1 - Use the equations in the preceding problem to find...Ch. 7.1 - For the following Exercises, use a graphing...Ch. 7.1 - For the following Exercises, use a graphing...Ch. 7.1 - For the following Exercises, use a graphing...Ch. 7.1 - An airplane traveling horizontally at 100 m/s over...Ch. 7.1 - The trajectory of a bullet is given by...Ch. 7.1 - [T] Use technology to sketch the curve represented...Ch. 7.1 - [T] Use technology to sketch x=2tan(t),y=3sec(t),t...Ch. 7.1 - Sketch the curve known as all epitrochoid, which...Ch. 7.1 - [T] Use technology to sketch the spiral curve...Ch. 7.1 - [T] Use technology to graph the curve given by the...Ch. 7.1 - [T] Sketch the curve given by parametric equations...Ch. 7.2 - For the following exercises, each set of...Ch. 7.2 - For the following exercises, each set of...Ch. 7.2 - For the following exercises, each set of...Ch. 7.2 - For the following exercises, each set of...Ch. 7.2 - For the following exercises, determine the slope...Ch. 7.2 - For the following exercises, determine the slope...Ch. 7.2 - For the following exercises, determine the slope...Ch. 7.2 - For the following exercises, determine the slope...Ch. 7.2 - For the following exercises, determine the slope...Ch. 7.2 - For the following exercises, find all points on...Ch. 7.2 - For the following exercises, find all points on...Ch. 7.2 - For the following exercises, find all points on...Ch. 7.2 - For the following exercises, find all points on...Ch. 7.2 - For the following exercises, write the equation of...Ch. 7.2 - For the following exercises, write the equation of...Ch. 7.2 - For the following exercises, write the equation of...Ch. 7.2 - For x=sin(2t),y=2sint where 0t2 . Find all values...Ch. 7.2 - For x=sin(2t),y=2sint where 0t2 . Find all values...Ch. 7.2 - Find all points on the curve x=4cos(t),y=4sin(t)...Ch. 7.2 - Find dydx for x=sin(t),y=cos(t) .Ch. 7.2 - Find the equation of the tangent line to...Ch. 7.2 - For the curve x=4t,y=3t2 , find the slope and...Ch. 7.2 - For the parametric curve whose equation is...Ch. 7.2 - Find the slope and concavity for the curve whose...Ch. 7.2 - Find all points on the curve x=t+4,y=t33t at which...Ch. 7.2 - Find all points on the curve x=sec,y=tan at which...Ch. 7.2 - For the following exercises, find d2y/dx2 . 88....Ch. 7.2 - For the following exercises, find d2y/dx2 . 89....Ch. 7.2 - For the following exercises, find d2y/dx2 . 90....Ch. 7.2 - For the following exercises, find points on the...Ch. 7.2 - For the following exercises, find points on the...Ch. 7.2 - For the following exercises, find dy/dx at the...Ch. 7.2 - For the following exercises, find dy/dx at the...Ch. 7.2 - For the following exercises, find dy/dx at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, ?nd d2y/dx2 at the...Ch. 7.2 - For the following exercises, find d2y/dx2 at the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the arc length...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.2 - For the following exercises, find the area of the...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - In the following exercises, plot the point whose...Ch. 7.3 - For the following exercises, consider the polar...Ch. 7.3 - For the following exercises, consider the polar...Ch. 7.3 - For the following exercises, consider the polar...Ch. 7.3 - For the following exercises, consider the polar...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, the rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, find rectangular...Ch. 7.3 - For the following exercises, determine whether the...Ch. 7.3 - For the following exercises, determine whether the...Ch. 7.3 - For the following exercises, determine whether the...Ch. 7.3 - For the following exercises, determine whether the...Ch. 7.3 - For the following exercises, determine whether the...Ch. 7.3 - For the following exercises, describe the graph of...Ch. 7.3 - For the following exercises, describe the graph of...Ch. 7.3 - For the following exercises, describe the graph of...Ch. 7.3 - For the following exercises, describe the graph of...Ch. 7.3 - For the following exercises, convert the...Ch. 7.3 - For the following exercises, convert the...Ch. 7.3 - For the following exercises, convert the...Ch. 7.3 - For the following exercises, convert the...Ch. 7.3 - For the following exercises, convert the...Ch. 7.3 - For the following exercises, convert the polar...Ch. 7.3 - For the following exercises, convert the polar...Ch. 7.3 - For the following exercises, convert the polar...Ch. 7.3 - For the following exercises, convert the polar...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - For the following exercises, sketch a graph of the...Ch. 7.3 - [T] Use a graphing utility and sketch the graph of...Ch. 7.3 - [T] Use a graphing utility to graph r=11cos .Ch. 7.3 - [T] Use technology to graph r=esin()2cos(4) .Ch. 7.3 - [T] Use technology to plot r=sin(37) (use the...Ch. 7.3 - Without using technology, sketch the polar curve...Ch. 7.3 - [T] Use a graphing utility to plot r=sin for .Ch. 7.3 - [T] Use technology to plot r=e0.1 for 1010 .Ch. 7.3 - [T] There is a curve known as the “Black Hole.”...Ch. 7.3 - [T] Use the results of the preceding two problems...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the fallowing exercises, determine a definite...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find the area of the...Ch. 7.4 - For the following exercises, find a definite...Ch. 7.4 - For the following exercises, find a definite...Ch. 7.4 - For the following exercises, find a definite...Ch. 7.4 - For the following exercises, find a definite...Ch. 7.4 - For the following exercises, find the length of...Ch. 7.4 - For the following exercises, find the length of...Ch. 7.4 - For the following exercises, find the length of...Ch. 7.4 - For the following exercises, find the length of...Ch. 7.4 - For the following exercises, find the length of...Ch. 7.4 - For the following exercises, use the integration...Ch. 7.4 - For the following exercises, use the integration...Ch. 7.4 - For the following exercises, use the integration...Ch. 7.4 - For the following exercises, use the integration...Ch. 7.4 - For the following exercises, use the integration...Ch. 7.4 - For the fallowing exercises, use the familiar...Ch. 7.4 - For the fallowing exercises, use the familiar...Ch. 7.4 - For the fallowing exercises, use the familiar...Ch. 7.4 - For the following exercises, use the familiar...Ch. 7.4 - For the following exercises, use the familiar...Ch. 7.4 - For the following exercises, use the familiar...Ch. 7.4 - For the following exercises, use the familiar...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - For the following exercises, ?nd the slope of a...Ch. 7.4 - Find the paints on the interval at which the...Ch. 7.4 - For the cardioid r=1+sin , find the slope of the...Ch. 7.4 - For the following exercises, find the slope of the...Ch. 7.4 - For the following exercises, find the slope of the...Ch. 7.4 - For the following exercises, find the slope of the...Ch. 7.4 - For the following exercises, find the slope of the...Ch. 7.4 - For the following exercises, find the points at...Ch. 7.4 - For the following exercises, find the points at...Ch. 7.4 - For the following exercises, find the points at...Ch. 7.4 - For the following exercises, find the points at...Ch. 7.4 - For the following exercises, find the points at...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, determine the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, consider the...Ch. 7.5 - For the following exercises, ?nd a polar equation...Ch. 7.5 - For the following exercises, ?nd a polar equation...Ch. 7.5 - For the following exercises, ?nd a polar equation...Ch. 7.5 - For the following exercises, ?nd a polar equation...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following exercises, sketch the graph of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - For the following equations, determine which of...Ch. 7.5 - The mirror in an automobile headlight has a...Ch. 7.5 - A satellite dish is shaped like a paraboloid of...Ch. 7.5 - Consider the satellite dish of the preceding...Ch. 7.5 - A searchlight is shaped like a paraboloid of...Ch. 7.5 - Whispering galleries are rooms designed with...Ch. 7.5 - A person is standing 3 feet from the nearest wall...Ch. 7.5 - For the following exercises, determine the polar...Ch. 7.5 - For the following exercises, determine the pelar...Ch. 7.5 - For the following exercises, determine the pelar...Ch. 7.5 - For the following exercises, determine the polar...Ch. 7 - True or False? Justify your answer with a proof or...Ch. 7 - True or False? Justify your answer with a proof or...Ch. 7 - True or False? Justify your answer with a proof or...Ch. 7 - True or False? Justify your answer with a proof or...Ch. 7 - For the following exercises, sketch the parametric...Ch. 7 - For the following exercises, sketch the parametric...Ch. 7 - For the following exercises, sketch the parametric...Ch. 7 - For the following exercises, sketch the parametric...Ch. 7 - For the following exercises, sketch the polar...Ch. 7 - For the following exercises, sketch the polar...Ch. 7 - For the following exercises, find the polar...Ch. 7 - For the following exercises, find the polar...Ch. 7 - Fur the following exercises, find the equation of...Ch. 7 - Fur the following exercises, find the equation of...Ch. 7 - Fur the following exercises, find the equation of...Ch. 7 - For the following exercises, find the area of the...Ch. 7 - For the following exercises, find the area of the...Ch. 7 - For the following exercises, find the arc length...Ch. 7 - For the following exercises, find the arc length...Ch. 7 - For the following exercises, find the Cartesian...Ch. 7 - For the following exercises, find the Cartesian...Ch. 7 - For the following exercises, find the Cartesian...Ch. 7 - For the following exercises, determine the...Ch. 7 - For the following exercises, determine the...Ch. 7 - For the following exercises, determine the...Ch. 7 - Determine the Cartesian equation describing the...Ch. 7 - The C/1980 E1 comet was observed in 1980. Given an...
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