# Answer to Question #36482 in Statistics and Probability for annie

Question #36482

b) Sales personnel for Boomerang Distributors are required to submit weekly reports listing the customer contacts made during the week. A sample of 61 weekly contact reports showed a mean of 22.4 customer contacts per week for the sales personnel. The sample standard deviation was 5 contacts.

i. Use the large-sample case to develop a 95% confidence interval for the mean number of weekly customer contacts for the population of sales personnel.

i. Assume that the population of weekly contact data has a normal distribution. Use the

t distribution with 60 degrees of freedom to develop a 95% confidence interval for the mean number of weekly customer contacts.

ii. Compare your answers for parts (1) and (ii). Comment on why in the large-sample case it is permissible to develop interval estimates using the procedure in part (i) even though the t distribution may also be applicable

i. Use the large-sample case to develop a 95% confidence interval for the mean number of weekly customer contacts for the population of sales personnel.

i. Assume that the population of weekly contact data has a normal distribution. Use the

t distribution with 60 degrees of freedom to develop a 95% confidence interval for the mean number of weekly customer contacts.

ii. Compare your answers for parts (1) and (ii). Comment on why in the large-sample case it is permissible to develop interval estimates using the procedure in part (i) even though the t distribution may also be applicable

Expert's answer

Unfortunately, your question requires a lot of work and cannot be done for free. Please submit it with all requirements as an assignment to our control panel and we'll assist you.

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

## Leave a comment