A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 96 students who averaged 42.7 minutes concentrating on their professor during the hour lecture. The standard deviation was 10.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? O distribution. b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 96 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence

Q: 国 7.

A: Solve for a

Q: 4s +5 S -4

A:

Q: a. Which of the error bars indicates the standard deviation? b. Which error bar indicates the…

A: Disclaimer: As the question has multiple parts, only first three will be answered.   The easiest and…

Q: Evaluate Vi

A:

Q: 2/5+4/8

A: We have to find the sum

Q: 3 3 x-5 1 322

A:

Q: Prove that X Pn dx %3D

A: Recurrence relation.  Partial fraction.

Q: -7.4v+2.4(-7.1v+-10)+6.7

A: simplified value is -24.44 v - 17.3

Q: Combination C.  (87,1)

A: Given:              C87, 1 The number of k-combinations from a given set S of n elements can be…

Q: 8+ 6 10. 9-2

A: This question is related to addition, subtraction and devision of numbers, we will solve it using…

Q: s+s+ !

A:

Q: Poove BLO => YQ< B.

A:

Q: 23-8K

A:

Q: blogs x

A: We have to find the value of blogbx.

Q: 1+7/7 + 8

A: Answar would be 10

Q: 4root2*4root2

A:

Q: sing the geometry of the graph ,evalvate the definite integrals.

A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

Q: 3p - p

A: Here Given that, 3p-p

Q: secotaned0 2sec0+3

A:

Q: 10* 10 + c

A:

Q: 216 5 5 6

A: B) It is a long division method used to divide.

Q: 3. Identify all the cycles at each node of the directed graph above.

A: Cycle is defined as a path that start and end at the same vertex.

Q: Evaluate (33)2

A: Given: 332Power rule amn=am×nSolution:332=33×2=36(33)2=729

Q: 5 23 4 48 1 5 75

A: Given       5  2 3 − 4 4 8¯      1  5 7 5

Q: 4. Fill in the following contingency table with the number of observations that fall into each com-…

A: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored oranges from M &amp;…

Q: h each scatterplot shown below with one of the four specified correlations. O 8 9 a. -0.02 b. 0.66…

A: From the above scatter plot From First scatter plot  The value of correlation coefficient is  -0. 85…

Q: 25-n=11

A:

Q: 75%1

A:

Q: finf the

A:

Q: 6 8 27

A: If a line parallel to a side of a triangle intersect the other sides in two distinct points, then…

Q: O V-100 -125 3. 3-125

A:

Q: 8-8.2+5.0

A:

Q: 3 7,542

A: We have to perform the division.

Q: N 11 9

A: Here given that N/9=11

Cylinders

A cylinder is a three-dimensional solid shape with two parallel and congruent circular bases, joined by a curved surface at a fixed distance. A cylinder has an infinite curvilinear surface.

Cones

A cone is a three-dimensional solid shape having a flat base and a pointed edge at the top. The flat base of the cone tapers smoothly to form the pointed edge known as the apex. The flat base of the cone can either be circular or elliptical. A cone is drawn by joining the apex to all points on the base, using segments, lines, or half-lines, provided that the apex and the base both are in different planes.