Julian is a manager at a clothing store for teens. He is analyzing the order for next season. Data for the previous 10 years sug
gests that teens are willing to spend an average of $75 for a pair of designer jeans with a standard deviation of $5. However, Julian thinks the average may have changed due to a recession. He finds that the last three seasons of data show that teens spent an average of $68 on a pair of jeans Therefore, he performed a hypothesis test to see if the recent average is the same. Julian used a significance level of 5% to perform the test. Which of the following statements is valid based on the results?
The first ranking can take 12 ways. The second ranking can take 12 - 1 = 11 ways The third ranking can take 12 - 2 = 10 ways and so until the six rankings are performed. The product of the six rankings is 12*11*10*9*8*7 = 665,280.
This result is given by the permutations of 6 objects out of 12. It is given by