Question

Julian is a manager at a clothing store for teens. He is analyzing the order for next season. Data for the previous 10 years suggests 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?

Answer 1

Answer:

the answer is A) Julian’s data shows that the recent seasons’ average jean price is not $75.

Answer 2

The statement: the recent seasons’ average jean price is not $75.

What is the Probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

How to solve it?

Julian’s data shows that the recent seasons’ average jean price is not $75.

Learn more about Probability:

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