Question

In another study conducted in 2016, the average of monthly salaries of 45 randomly chosen residents in Bordeaux was found to be €3200; the sample standard deviation of the chosen salaries was €600. The suspicion was that the average salary of residents in Paris is lower than the average salary of residents in Bordeaux. The research team was to conduct a t-test to test the suspicion. But they had no information on the two population variances. So they first conducted an F-test at a significance level of 5% to determine if the two population variances are equal or not, assuming that both populations were normal. Set 1 = Paris; 2 = Bordeaux.

Question 12: The analyst then conducted an appropriate t-test at a significance level of 5% to test the suspicion. Set up the alternative hypotheses for the t-test. Question 13: Find the test statistic in the t-test.

Question 14: Find the rejection region in the t-test.

Question 15: What is the conclusion?

Answer 1

ANSWER::

Q.12)

We want to test;

H0 : The average/mean salary f paris and Bordeaux is same

H1: The average/mean salary f paris and Bordeaux is different

NOTE:: I HOPE THIS ANSWER IS HELPFULL TO YOU......**PLEASE SUPPORT ME WITH YOUR RATING......

**PLEASE GIVE ME "LIKE".....ITS VERY IMPORTANT  FOR,ME......PLEASE SUPPORT ME .......THANK YOU