Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book
10th Edition
ISBN: 9780133347777
Author: Robert A. Carman Emeritus, Hal M. Saunders
Publisher: PEARSON
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Chapter 4, Problem 30GPS
(a)
To determine
The pulley ratio
(b)
To determine
The speed of the smaller pulley when the larger pulley turns at 1500 rpm.
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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 4 Solutions
Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book
Ch. 4.1 - Complete the following tables.Ch. 4.1 - A. Complete the following tables. 2.Ch. 4.1 - A. Complete the following tables. 3.Ch. 4.1 - Solve these proportion equations. 32=x8Ch. 4.1 - Solve these proportion equations. 6R=572Ch. 4.1 - Solve these proportion equations. y60=53Ch. 4.1 - Solve these proportion equations. 215=8HCh. 4.1 - Solve these proportion equations. 5P=307Ch. 4.1 - Solve these proportion equations. 16=17xCh. 4.1 - Solve these proportion equations. A2.5=1310
Ch. 4.1 - Solve these proportion equations. 27M=30.8Ch. 4.1 - Solve these proportion equations. 25=T4.5Ch. 4.1 - Solve these proportion equations. 0.12N=27Ch. 4.1 - Solve these proportion equations. 13823=18xCh. 4.1 - Solve these proportion equations. 3.251.5=A0.6Ch. 4.1 - Solve these proportion equations. x34.86=1.28.3Ch. 4.1 - Solve these proportion equations. 212R=114314Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations. 312in.W=1.40.05Ch. 4.1 - Solve. Automotive Trades The compression ratio in...Ch. 4.1 - Prob. 2CECh. 4.1 - Solve. Machine Trades If 28 tapered pins can be...Ch. 4.1 - Solve. Carpentry If 6 lb of nails are needed for...Ch. 4.1 - Solve. Masonry For a certain kind of plaster work,...Ch. 4.1 - Prob. 6CECh. 4.1 - Solve. Machine Trades A cylindrical oil tank 8 ft...Ch. 4.1 - Prob. 8CECh. 4.1 - Solve. Welding A 10-ft bar of I-beam weighs 208...Ch. 4.1 - Solve. Photography A photographer must mix a...Ch. 4.1 - Solve. General Trades If you earn 684.80 for a...Ch. 4.1 - Solve. Machine Trades A machinist can produce 12...Ch. 4.1 - Solve. Automotive Trades The headlights on a car...Ch. 4.1 - Prob. 14CECh. 4.1 - Solve. Agriculture To prepare a pesticide spray,...Ch. 4.1 - Solve. Painting A painter must thin some paint for...Ch. 4.1 - Solve. Allied Health The label on a concentrated...Ch. 4.1 - Solve. Automotive Trades In winter weather,...Ch. 4.1 - Prob. 19CECh. 4.1 - Prob. 20CECh. 4.1 - Prob. 21CECh. 4.1 - Solve. Sports and Leisure Power hitter Sammy...Ch. 4.1 - Prob. 23CECh. 4.1 - Prob. 24CECh. 4.1 - Solve. Allied Health Medication Q is available...Ch. 4.1 - Prob. 26CECh. 4.1 - Prob. 27CECh. 4.1 - Prob. 28CECh. 4.1 - Prob. 29CECh. 4.1 - Prob. 30CECh. 4.1 - Solve. Trades Management A small welding shop...Ch. 4.1 - Prob. 32CECh. 4.1 - Prob. 33CECh. 4.1 - Prob. 34CECh. 4.1 - Prob. 35CECh. 4.2 - Complete the following tables. 1. Similar...Ch. 4.2 - Complete the following tables. 2. Similar figuresCh. 4.2 - Complete the following tables.Ch. 4.2 - Complete the following tables.Ch. 4.2 - Practical Applications Problem 1 Metalworking A...Ch. 4.2 - Practical Applications Architecture The...Ch. 4.2 - Practical Applications Automotive Trades...Ch. 4.2 - Practical Applications Transportation The distance...Ch. 4.2 - Prob. 5BECh. 4.2 - Practical Applications Industrial Technology If 60...Ch. 4.2 - Practical Applications Automotive Trades If the...Ch. 4.2 - Practical Applications General Trades The length...Ch. 4.2 - Practical Applications Construction The Santa...Ch. 4.2 - Practical Applications Machine Trades A pair of...Ch. 4.2 - Practical Applications Manufacturing A 15-tooth...Ch. 4.2 - Practical Applications Electronics The power gain...Ch. 4.2 - Prob. 13BECh. 4.2 - Prob. 14BECh. 4.2 - Practical Applications Automotive Trades The...Ch. 4.2 - Prob. 16BECh. 4.2 - Practical Applications Machine Trades It is known...Ch. 4.2 - Prob. 18BECh. 4.2 - Prob. 19BECh. 4.2 - Practical Applications Architecture A wrought-iron...Ch. 4.2 - Prob. 21BECh. 4.2 - Electrical Trades The electrical resistance of a...Ch. 4.2 - Prob. 23BECh. 4.2 - Practical Applications Sheet Metal Trades If the...Ch. 4.2 - Prob. 25BECh. 4.2 - Prob. 26BECh. 4.2 - Prob. 27BECh. 4.2 - Prob. 28BECh. 4.2 - Prob. 29BECh. 4.2 - Prob. 30BECh. 4.2 - Prob. 31BECh. 4.3 - Prob. 1AECh. 4.3 - Convert to a percent. 1Ch. 4.3 - Convert to a percent. 0.5Ch. 4.3 - Prob. 4AECh. 4.3 - Prob. 5AECh. 4.3 - Prob. 6AECh. 4.3 - Prob. 7AECh. 4.3 - Prob. 8AECh. 4.3 - Prob. 9AECh. 4.3 - Prob. 10AECh. 4.3 - Prob. 11AECh. 4.3 - Prob. 12AECh. 4.3 - Prob. 13AECh. 4.3 - Prob. 14AECh. 4.3 - Prob. 15AECh. 4.3 - Prob. 16AECh. 4.3 - Convert to a percent. 32Ch. 4.3 - Prob. 18AECh. 4.3 - Prob. 19AECh. 4.3 - Convert to a percent. 15Ch. 4.3 - Prob. 21AECh. 4.3 - Prob. 22AECh. 4.3 - Prob. 23AECh. 4.3 - Prob. 24AECh. 4.3 - Prob. 25AECh. 4.3 - Prob. 26AECh. 4.3 - Prob. 27AECh. 4.3 - Prob. 28AECh. 4.3 - Prob. 29AECh. 4.3 - Prob. 30AECh. 4.3 - Prob. 31AECh. 4.3 - Prob. 32AECh. 4.3 - Prob. 33AECh. 4.3 - Prob. 34AECh. 4.3 - Prob. 35AECh. 4.3 - Prob. 36AECh. 4.3 - Prob. 37AECh. 4.3 - Prob. 38AECh. 4.3 - Prob. 39AECh. 4.3 - Prob. 40AECh. 4.3 - Prob. 1BECh. 4.3 - Prob. 2BECh. 4.3 - Prob. 3BECh. 4.3 - Prob. 4BECh. 4.3 - Prob. 5BECh. 4.3 - Prob. 6BECh. 4.3 - Prob. 7BECh. 4.3 - Prob. 8BECh. 4.3 - Prob. 9BECh. 4.3 - Prob. 10BECh. 4.3 - Prob. 11BECh. 4.3 - Prob. 12BECh. 4.3 - Prob. 13BECh. 4.3 - Prob. 14BECh. 4.3 - Prob. 15BECh. 4.3 - Prob. 16BECh. 4.3 - Prob. 17BECh. 4.3 - Prob. 18BECh. 4.3 - Prob. 19BECh. 4.3 - Prob. 20BECh. 4.3 - Prob. 21BECh. 4.3 - Prob. 22BECh. 4.3 - Prob. 23BECh. 4.3 - Prob. 24BECh. 4.3 - Prob. 25BECh. 4.3 - Prob. 26BECh. 4.3 - Prob. 27BECh. 4.3 - Prob. 28BECh. 4.3 - Prob. 29BECh. 4.3 - Prob. 30BECh. 4.3 - Prob. 31BECh. 4.3 - Prob. 32BECh. 4.3 - Prob. 1CECh. 4.3 - Prob. 2CECh. 4.3 - Prob. 3CECh. 4.3 - Prob. 4CECh. 4.3 - Prob. 5CECh. 4.3 - Prob. 6CECh. 4.3 - Prob. 7CECh. 4.3 - Prob. 8CECh. 4.3 - Prob. 9CECh. 4.3 - Rewrite each percent as a fraction in lowest...Ch. 4.3 - Prob. 11CECh. 4.3 - Prob. 12CECh. 4.3 - Prob. 13CECh. 4.3 - Prob. 14CECh. 4.3 - Prob. 15CECh. 4.3 - Prob. 16CECh. 4.3 - Prob. 17CECh. 4.3 - Prob. 18CECh. 4.3 - Prob. 19CECh. 4.3 - Prob. 20CECh. 4.4 - Solve. 4 is _________ % of 5.Ch. 4.4 - Prob. 2AECh. 4.4 - Prob. 3AECh. 4.4 - Prob. 4AECh. 4.4 - Prob. 5AECh. 4.4 - Prob. 6AECh. 4.4 - Prob. 7AECh. 4.4 - Prob. 8AECh. 4.4 - Solve. What percent of 54 is 36?Ch. 4.4 - Prob. 10AECh. 4.4 - Prob. 11AECh. 4.4 - Solve. 13 is what percent of 25?Ch. 4.4 - Prob. 13AECh. 4.4 - Prob. 14AECh. 4.4 - Prob. 15AECh. 4.4 - Solve. 60% of what number is 14?Ch. 4.4 - Prob. 17AECh. 4.4 - Prob. 18AECh. 4.4 - Prob. 19AECh. 4.4 - Prob. 20AECh. 4.4 - Solve. 30% of what number is equal to 12?Ch. 4.4 - Prob. 22AECh. 4.4 - Prob. 23AECh. 4.4 - Prob. 24AECh. 4.4 - Prob. 1BECh. 4.4 - Solve. What percent of 10 is 2.5?Ch. 4.4 - Solve. 6% of 3.29 is _________.Ch. 4.4 - Prob. 4BECh. 4.4 - Prob. 5BECh. 4.4 - Prob. 6BECh. 4.4 - Prob. 7BECh. 4.4 - Solve. 0.75 is _________ % of 37.50.Ch. 4.4 - Prob. 9BECh. 4.4 - Prob. 10BECh. 4.4 - Prob. 11BECh. 4.4 - Prob. 12BECh. 4.4 - Prob. 13BECh. 4.4 - Prob. 14BECh. 4.4 - Prob. 15BECh. 4.4 - Prob. 16BECh. 4.4 - Prob. 17BECh. 4.4 - Prob. 18BECh. 4.4 - Prob. 1CECh. 4.4 - Prob. 2CECh. 4.4 - Prob. 3CECh. 4.4 - Practical Applications Masonry On the basis of...Ch. 4.4 - Practical Applications Automotive Trades The...Ch. 4.4 - Prob. 6CECh. 4.4 - Practical Applications General Trades A worker...Ch. 4.4 - Prob. 8CECh. 4.4 - Prob. 9CECh. 4.4 - Prob. 10CECh. 4.4 - Practical Applications Carpentry Preparing an...Ch. 4.4 - Practical Applications Printing Jiffy Print needs...Ch. 4.4 - Prob. 13CECh. 4.4 - Prob. 14CECh. 4.4 - Prob. 15CECh. 4.4 - Prob. 16CECh. 4.4 - Construction Quality Homes Construction Company...Ch. 4.4 - Prob. 18CECh. 4.4 - Practical Applications Allied Health A typical...Ch. 4.4 - Prob. 20CECh. 4.4 - Prob. 21CECh. 4.4 - Prob. 22CECh. 4.4 - Sports and Leisure During the 2012 Wimbledon...Ch. 4.4 - Prob. 24CECh. 4.4 - Prob. 25CECh. 4.4 - Prob. 26CECh. 4.4 - Prob. 27CECh. 4.4 - Prob. 28CECh. 4.4 - Practical Applications Welding The allowable shear...Ch. 4.4 - Practical Applications Water/Wastewater Treatment...Ch. 4.4 - Prob. 31CECh. 4.4 - Prob. 32CECh. 4.4 - Prob. 33CECh. 4.4 - Prob. 34CECh. 4.4 - Prob. 35CECh. 4.4 - Prob. 36CECh. 4.4 - Allied Health A pharmaceutical sales...Ch. 4.4 - Prob. 38CECh. 4.4 - Prob. 39CECh. 4.5 - Electronics A CB radio is rated at 7.5 watts, and...Ch. 4.5 - Prob. 2ECh. 4.5 - Electrical Trades An engine supplies 110 hp to an...Ch. 4.5 - Prob. 4ECh. 4.5 - Prob. 5ECh. 4.5 - Prob. 6ECh. 4.5 - Prob. 7ECh. 4.5 - Life Skills If you earn 12% commission on sales of...Ch. 4.5 - Metalworking On a cutting operation, 2 sq ft of...Ch. 4.5 - Prob. 10ECh. 4.5 - Prob. 11ECh. 4.5 - Prob. 12ECh. 4.5 - Manufacturing A small gasoline shop engine...Ch. 4.5 - Prob. 14ECh. 4.5 - Prob. 15ECh. 4.5 - Trades Management A welding shop charges the...Ch. 4.5 - Prob. 17ECh. 4.5 - Prob. 18ECh. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - Prob. 21ECh. 4.5 - Interior Design An interior designer working for a...Ch. 4.5 - Retail Merchandising A one-terabyte external hard...Ch. 4.5 - Trades Management Chris paid for the initial...Ch. 4.5 - Prob. 25ECh. 4.5 - Prob. 26ECh. 4.5 - Prob. 27ECh. 4.5 - Prob. 28ECh. 4.5 - Automotive Trades A new tire had a tread depth of...Ch. 4.5 - Prob. 30ECh. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - Prob. 33ECh. 4.5 - Machine Trades Complete the following table of...Ch. 4.5 - Electrical Trades An electrician purchases some...Ch. 4.5 - Prob. 36ECh. 4.5 - Prob. 37ECh. 4.5 - Culinary Arts A wholesale food sales rep is paid a...Ch. 4.5 - Life Skills A sales rep for roofing materials...Ch. 4.5 - Prob. 40ECh. 4.5 - Trades Management Last year, the owner of the...Ch. 4.5 - Trades Management Because it has a history of...Ch. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Prob. 47ECh. 4.5 - Prob. 48ECh. 4.5 - Prob. 49ECh. 4.5 - Prob. 50ECh. 4.5 - Prob. 51ECh. 4.5 - Prob. 52ECh. 4.5 - Allied Health A patient originally weighing 180 lb...Ch. 4.5 - Solve
Retail Merchandising A jacket was reduced in...Ch. 4.5 - Prob. 55ECh. 4.5 - Prob. 56ECh. 4.5 - Prob. 57ECh. 4.5 - Prob. 58ECh. 4.5 - Prob. 59ECh. 4.5 - Prob. 60ECh. 4.5 - Prob. 61ECh. 4 - Calculate ratios. (a) Find the ratio of the pulley...Ch. 4 - Solve proportions. (a) Solve for x. 8x=1215...Ch. 4 - Solve problems involving proportions. (a)...Ch. 4 - Write fractions and decimal numbers as percents....Ch. 4 - Prob. 5PCh. 4 - Solve problems involving percent. (a) Find 3712 of...Ch. 4 - A. Complete the following tables.Ch. 4 - A. Complete the following tables.Ch. 4 - B. Solve the following proportions. 56=x42Ch. 4 - B. Solve the following proportions. 815=12xCh. 4 - Prob. 3BPSCh. 4 - B. Solve the following proportions. 312x=51418Ch. 4 - B. Solve the following proportions. 1.65.2=4.4xCh. 4 - B. Solve the following proportions....Ch. 4 - C. Write each number as a percent. 0.72Ch. 4 - C. Write each number as a percent. 0.06Ch. 4 - Prob. 3CPSCh. 4 - C. Write each number as a percent. 0.358Ch. 4 - Prob. 5CPSCh. 4 - C. Write each number as a percent. 3.03Ch. 4 - Prob. 7CPSCh. 4 - Prob. 8CPSCh. 4 - Prob. 9CPSCh. 4 - C. Write each number as a percent. 235Ch. 4 - Prob. 1DPSCh. 4 - Prob. 2DPSCh. 4 - Prob. 3DPSCh. 4 - D. Write each percent as a decimal number. 94%Ch. 4 - Prob. 5DPSCh. 4 - D. Write each percent as a decimal number. 0.09%Ch. 4 - Prob. 7DPSCh. 4 - Prob. 8DPSCh. 4 - Prob. 9DPSCh. 4 - D. Write each percent as a decimal number. 8.02%Ch. 4 - Prob. 11DPSCh. 4 - D. Write each percent as a decimal number. 210%Ch. 4 - Prob. 1EPSCh. 4 - E. Write each of the following percents as a...Ch. 4 - Prob. 3EPSCh. 4 - Prob. 4EPSCh. 4 - Prob. 5EPSCh. 4 - Prob. 6EPSCh. 4 - Prob. 7EPSCh. 4 - E. Write each of the following percents as a...Ch. 4 - F. Solve. 3 is _____ % of 5.Ch. 4 - F. Solve. 5% is 120 is _____.Ch. 4 - Prob. 3FPSCh. 4 - F. Solve. 16 is what percent of 8?Ch. 4 - Prob. 5FPSCh. 4 - F. Solve. 1.38 is _____ % of 1.15.Ch. 4 - Prob. 7FPSCh. 4 - F. Solve. 250% of 50 is _____.Ch. 4 - Prob. 9FPSCh. 4 - Prob. 10FPSCh. 4 - Prob. 1GPSCh. 4 - Metalworking Cast iron contains up to 4.5% carbon,...Ch. 4 - Prob. 3GPSCh. 4 - Prob. 4GPSCh. 4 - Prob. 5GPSCh. 4 - Retail Merchandising A computer printer sells for...Ch. 4 - Prob. 7GPSCh. 4 - Prob. 8GPSCh. 4 - Prob. 9GPSCh. 4 - Masonry A mason must purchase enough mortar mix to...Ch. 4 - Manufacturing A production job is bid at 6275, but...Ch. 4 - Metalworking When heated, a metal rod expands...Ch. 4 - Prob. 13GPSCh. 4 - Automotive Trades A 140-hp automobile engine...Ch. 4 - Prob. 15GPSCh. 4 - Prob. 16GPSCh. 4 - Prob. 17GPSCh. 4 - Trades Management To purchase a truck for his...Ch. 4 - Prob. 19GPSCh. 4 - Interior Design An interior designer is able to...Ch. 4 - Prob. 21GPSCh. 4 - Prob. 22GPSCh. 4 - Prob. 23GPSCh. 4 - Automotive Trades The headlights on a car are...Ch. 4 - Prob. 25GPSCh. 4 - Prob. 26GPSCh. 4 - Prob. 27GPSCh. 4 - Prob. 28GPSCh. 4 - Machine Trades Six steel parts weigh 1.8 lb. How...Ch. 4 - Prob. 30GPSCh. 4 - Prob. 31GPSCh. 4 - Drafting Drafters usually use a scale of 14 in. =...Ch. 4 - Prob. 33GPSCh. 4 - Prob. 34GPSCh. 4 - Prob. 35GPSCh. 4 - Prob. 36GPSCh. 4 - Prob. 37GPSCh. 4 - Printing A printer needs 12,000 good copies of a...Ch. 4 - Prob. 39GPSCh. 4 - Prob. 40GPSCh. 4 - Prob. 41GPSCh. 4 - General Trades Find the missing dimension in the...Ch. 4 - Physics In a closed container, the pressure is...Ch. 4 - Automotive Trades The mechanical efficiency of a...Ch. 4 - Prob. 45GPSCh. 4 - Allied Health Calculate the percent concentration...Ch. 4 - Prob. 47GPSCh. 4 - Prob. 48GPSCh. 4 - Prob. 49GPSCh. 4 - Prob. 50GPSCh. 4 - Prob. 51GPSCh. 4 - Prob. 52GPSCh. 4 - Prob. 53GPSCh. 4 - Prob. 54GPSCh. 4 - Prob. 55GPSCh. 4 - Prob. 56GPSCh. 4 - Prob. 57GPSCh. 4 - Prob. 58GPSCh. 4 - Prob. 59GPSCh. 4 - Plumbing A homeowner purchases a new hot-water...Ch. 4 - Prob. 61GPSCh. 4 - Prob. 62GPSCh. 4 - Prob. 63GPSCh. 4 - Prob. 64GPSCh. 4 - Prob. 65GPS
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