Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We susp number of hours worked per week by college graduates, u, is greater than 40 hours and wish to do a statistical test. We select a randor graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 5 hours. Based on this information, answer the questions below. What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? H,: u is equal to 40 hours H: u is not equal to 40 hours v

Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We susp number of hours worked per week by college graduates, u, is greater than 40 hours and wish to do a statistical test. We select a randor graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 5 hours. Based on this information, answer the questions below. What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? H,: u is equal to 40 hours H: u is not equal to 40 hours v

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average travel time by bus between two cities is 6 hours (i.e. 360 minutes). However, due to changes in routes and traffic, it is suspected that there was an increase in the average travel time. To investigate this suspicion, a random sample of 9 trips was selected. The average travel time in this sample was 6 hours and 25 minutes (385 minutes) and the standard deviation was 45 minutes. Based on this information, and on the hypothesis testing concepts studied throughout the week, associate the number of the term below with the term a, b or c 1. Significance level.2. Type II error in the test.3. Rationale of hypothesis testing.4. p-value of the test.5.Test statistic probability distribution.6. Population. a. Do not reject the statement that μ=360min when in fact μ>360min. b. 0.067c. If, under a given assumption, an event of extremely low probability occurs, we conclude that the assumption is probably not true.
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