Reference no: EM132250348

A researcher claimed that people who owned dogs were less likely to visit to their counselors after upsetting events than were those who did not own pets. To test his assertion, two randomly selected groups of people who own dogs and don't will be compared. The following table shows the number of visits to counselors during the past year.

Non-Owners Owners

 12 8

10 5

6 9

9 4

15 6

12 4

14 5

1. Perform the hypothesis testing with this data. Show all of your calculation and work at each of the four steps of statistical hypothesis testing. Hint: you will need to check whether the assumption of equal variances is satisfied or not before performing the t-test.

2. Type in the data in EXCEL and run an independent samples t-test. Confirm the result from your hand-calculation with results appeared on the EXCEL output. Submit the output along with this homework (you can paste the Excel output here).