C. Solve the problems by following the steps and procedures in hypothesis testing. 1. An automobile manufacturer states that the mean kilometer per liter (kpl) for one of its new full- sized models is 15. Sixty cars of this model were randomly selected and the number of kilometers per liter consumed was recorded for each. The sample mean is 14.5 kpl with a standard deviation of 1.5. Do the data present sufficient evidence to indicate that the mean kpl for this model is more than 15? Use 0.01 level of significance. 2. Job satisfaction as a function of work schedule was investigated in two different factories. In the first factory, the employees are on fixed shift system while the second factory, the workers have rotating shift system. Using the data in the table below, determine if there is a significant difference in job satisfaction between the two groups of workers. Use a = 0.01 Work Schedule Fixed Shift Rotating Shift S 7.27 3.15 3.02 38 6.12 40
C. Solve the problems by following the steps and procedures in hypothesis testing. 1. An automobile manufacturer states that the mean kilometer per liter (kpl) for one of its new full- sized models is 15. Sixty cars of this model were randomly selected and the number of kilometers per liter consumed was recorded for each. The sample mean is 14.5 kpl with a standard deviation of 1.5. Do the data present sufficient evidence to indicate that the mean kpl for this model is more than 15? Use 0.01 level of significance. 2. Job satisfaction as a function of work schedule was investigated in two different factories. In the first factory, the employees are on fixed shift system while the second factory, the workers have rotating shift system. Using the data in the table below, determine if there is a significant difference in job satisfaction between the two groups of workers. Use a = 0.01 Work Schedule Fixed Shift Rotating Shift S 7.27 3.15 3.02 38 6.12 40
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Solve problem C
Transcribed Image Text:C. Solve the problems by following the steps and procedures in hypothesis testing.
1. An automobile manufacturer states that the mean kilometer per liter (kpl) for one of its new ful-
sized models is 15. Sixty cars of this model were randomly selected and the number of kilometers
per liter consumed was recorded for each. The sample mean is 14.5 kpl with a standard
deviation of 1.5. Do the data present sufficient evidence to indicate that the mean kpl for this
model is more than 15? Use 0.01 level of significance.
2. Job satisfaction as a function of work schedule was investigated in two different factories. In the
first factory, the employees are on fixed shift system while the second factory, the workers have
rotating shift system. Using the data in the table below, determine if there is a significant
difference in job satisfaction between the two groups of workers. Use a = 0.01
Work Schedule
Fixed Shift
Rotating Shift
7.27
6.12
3.15
38
3.02
40
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