Question 13 pts

Flu Vaccination Clinic Wait Times. CVS Minute Health Clinic once had a separate patient waiting line at each nurse practitioner station, but it now has a single waiting line that feeds the nurse practitioner stations as vacancies occur. The standard deviation of customer waiting times with the old multiple-line configuration was 1.8 minutes. Listed below is a simple random sample of waiting times (in minutes) with the single waiting line. The 10 simple values have a standard deviation of 0.5 minutes.

6.5 6.6 6.7 6.8 7.1 7.3 7.4 7.7 7.7 7.7

When CVS changed from multiple waiting lines to a single line, how was the mean waiting time affected?

Group of answer choices

The mean wait time was reduced.

The mean wait time increased

The mean wait time was unchanged

This is unknown based on the information given.

Flag question: Question 2Question 23 pts

Flu Vaccination Clinic Wait Times (Cont). CVS Minute Health Clinic once had a separate patient waiting line at each nurse practitioner station, but it now has a single waiting line that feeds the nurse practitioner stations as vacancies occur. The standard deviation of customer waiting times with the old multiple-line configuration was 1.8 minutes. Listed below is a simple random sample of waiting times (in minutes) with the single waiting line. The 10 simple values have a standard deviation of 0.5 minutes.

6.5 6.6 6.7 6.8 7.1 7.3 7.4 7.7 7.7 7.7

When CVS changed from multiple waiting lines to a single line, how was the variation among waitingtimes affected?

Group of answer choices

The variation among wait times increased.

The variation among wait times decreased.

The variation among wait times remained the same.

This is unknown based on the information given.

Flag question: Question 3Question 33 pts

Flu Vaccination Clinic Wait Times. CVS Minute Health Clinic once had a separate patient waiting line at each nurse practitioner station, but it now has a single waiting line that feeds the nurse practitioner stations as vacancies occur. The standard deviation of customer waiting times with the old multiple-line configuration was 1.8 minutes. Listed below is a simple random sample of waiting times (in minutes) with the single waiting line. The 10 simple values have a standard deviation of 0.5 minutes.

6.5 6.6 6.7 6.8 7.1 7.3 7.4 7.7 7.7 7.7

Which of the following can you say is an improvement that occurred with the change from multiple waiting lines to a single line?

Group of answer choices

The amount of time patients spent waiting decreased so patients were happier.

The amount of patients that visited decreased leading to a decrease in wait times.

The variation in wait times decreased.

Both the amount of time and the variation decreased making patients happy.

Flag question: Question 4Question 43 pts

Flu Vaccination Clinic Wait Times. CVS Minute Health Clinic once had a separate patient waiting line at each nurse practitioner station, but it now has a single waiting line that feeds the nurse practitioner stations as vacancies occur. The standard deviation of customer waiting times with the old multiple-line configuration was 1.8 minutes. Listed below is a simple random sample of waiting times (in minutes) with the single waiting line. The 10 simple values have a standard deviation of 0.5 minutes.

6.5 6.6 6.7 6.8 7.1 7.3 7.4 7.7 7.7 7.7

What procedure can be used to determine that the single waiting line is better?

Group of answer choices

Hypothesis Testing for Difference between two means

Hypothesis Testing for Proportions

Hypothesis Testing for a Single Mean

Hypothesis Testing for Standard Deviation

Flag question: Question 5Question 54 pts

Finding acritical value:Find the critical value necessary to conduct a right tailed hypothesis test at the 5% significance level for a sample size of n=40. Use this result to answer questions 6 & 7. Enter the answer exactly as it appears in the table without rounding.

Hint: If the degrees of freedom you calculate is not in the table, round up to the nearest degrees of freedom. In this example, as n-1 = 39 degrees of freedom is not available in the table, round up to 40 degrees of freedom.