Question

In: Statistics and Probability

Group Sample Size Sample Mean Sample Standard Deviation Atlanta 100 29.11 20.72 St. Louis 100 21.97...

Group

Sample Size

Sample Mean

Sample Standard Deviation

Atlanta

100

29.11

20.72

St. Louis

100

21.97

14.23

A. Use the six step hypothesis testing procedure to determine if there is evidence that the mean commute times are different in the populations of Atlanta and St. Louis residents.

Step 1: Identify the population, comparison distribution, and assumptions [4 points]

Step 2: State the null and research hypotheses [4 points]

H0:

H1:

Step 3: Determine the characteristics of the comparison distribution (shape, mean, & standard error) [4 points]

Step 4: Determine the critical values [4 points]

Step 5: Calculate the test statistic [4 points]

Step 6: Make a decision (reject/fail to reject + real world conclusion) [4 points]

B. Compute Cohen’s d for the difference in sample means. [4 points]

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