A study is done to test the claim that Company A retains its workers longer than Company B. Company A samples 16 workers, and their average time with the company is 5.2 years with a standard deviation of 1.1. Company B samples 21 workers, and their average time with the company is 4.6 years with a standard deviation of 0.9. The populations are normally distributed.

Hypothesis in symbolic form?

Determine the value of the test statistic?

Find the critical value or value?

Determine if you should reject null hypothesis or fail to reject?

write a conclusion addressing the original claim?