Question 1

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below:  For each column total,calculate the corresponding percentage.

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Question 2

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below:  Test the null hypothesis that score is independent of education level at α = .01.

Accepted Answer

The answer of The HR manager of a major office...

Question 3

The distance traveled by buses before their first major motor failure is distributed below,with an estimated mean and standard deviation of 95.7 and 38.1.Also shown are the expected frequencies of these intervals if the original population was a normal distribution.  What is the df for testing the hypothesis that the original population is a normal distribution?

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The answer of The distance traveled by buses before their...

Question 4

The distance traveled by buses before their first major motor failure is distributed below,with an estimated mean and standard deviation of 95.7 and 38.1.Also shown are the expected frequencies of these intervals if the original population was a normal distribution.  What is the chi-square test statistic for testing the hypothesis that the original population is a normal distribution?

Accepted Answer

The answer of The distance traveled by buses before their...

Question 5

The following frequency table summarizes the ages of 60 shoppers at the local grocery store.  The estimated mean is 36.25,and the estimated standard deviation is 13.57.Calculate the expected frequencies for each interval,assuming a normal distribution.

Accepted Answer

The answer of The following frequency table summarizes the ages...

Question 6

The distance traveled by buses before their first major motor failure is distributed below,with an estimated mean and standard deviation of 95.7 and 38.1.Also shown are the expected frequencies of these intervals if the original population was a normal distribution.  Test the hypothesis that the original population is a normal distribution at .05.

Accepted Answer

The answer of The distance traveled by buses before their...

Question 7

The following frequency table summarizes the ages of 60 shoppers at the local grocery store.  The estimated mean is 36.25 and estimated standard deviation is 13.57.Calculate the probability for each interval,assuming a normal distribution.

Accepted Answer

The answer of The following frequency table summarizes the ages...

Question 8

The following frequency table summarizes the ages of 60 shoppers at the local grocery store.  The estimated mean is 36.25,and the estimated standard deviation is 13.57.Calculate the value of the chi-square test statistic to determine whether these measurements came from a normal population.

Accepted Answer

The answer of The following frequency table summarizes the ages...

Question 9

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below:  For each cell,calculate the corresponding cell,row,and column percentage.

Accepted Answer

The answer of The HR manager of a major office...

Question 10

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below:  For each row total,calculate the corresponding percentage.

Accepted Answer

The answer of The HR manager of a major office...

Question 11

The following frequency table summarizes the ages of 60 shoppers at the local grocery store. The estimated mean is 36.25,and the estimated standard deviation is 13.57.It is desired to test whether these measurements came from a normal population.At a significance of .01,test H₀: the sample of 60 shoppers came from a normal population.

Accepted Answer

The answer of The following frequency table summarizes the ages...

Question 12

The following frequency table summarizes the ages of 60 shoppers at the local grocery store.  The estimated mean is 36.25,and the estimated standard deviation is 13.57.It is desired to test whether these measurements came from a normal population.What is the df for this chi-square test of normality?

Accepted Answer

The answer of The following frequency table summarizes the ages...

Quiz 12: Chi-Square Tests

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below: For each column total,calculate the corresponding percentage.

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below: Test the null hypothesis that score is independent of education level at α = .01.

The following frequency table summarizes the ages of 60 shoppers at the local grocery store. The estimated mean is 36.25,and the estimated standard deviation is 13.57.Calculate the expected frequencies for each interval,assuming a normal distribution.

The following frequency table summarizes the ages of 60 shoppers at the local grocery store. The estimated mean is 36.25 and estimated standard deviation is 13.57.Calculate the probability for each interval,assuming a normal distribution.

The following frequency table summarizes the ages of 60 shoppers at the local grocery store. The estimated mean is 36.25,and the estimated standard deviation is 13.57.Calculate the value of the chi-square test statistic to determine whether these measurements came from a normal population.

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below: For each cell,calculate the corresponding cell,row,and column percentage.

The HR manager of a major office supply chain is interested in determining whether employee educational level affects knowledge of their job.An exam was given to 120 employees.The results are below: For each row total,calculate the corresponding percentage.

The following frequency table summarizes the ages of 60 shoppers at the local grocery store. The estimated mean is 36.25,and the estimated standard deviation is 13.57.It is desired to test whether these measurements came from a normal population.What is the df for this chi-square test of normality?