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Costco sells paperback books in their retail stores and wantedto examine the relationship between price and demand. The price ofa particular novel was adjusted each week and the weekly sales wererecorded in the table below.

Sales	Price
3	$12
4	$11
6	$10
10	$9
8	$8
10	$7

Management would like to use simple regression analysis toestimate weekly demand for this novel using the price of the novel.The 95% confidence interval that estimates the average weekly salesfor a price of $9 is ________.

A. (1.96, 13.16)

B.(7.26, 7.86)

C.(5.93, 9.19)

D.(1.26, 13.86)

E.(1.69, 12.66)

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Question 6 0.25 pts

An office manager for a group of financial advisors who providefinancial services for individual clients. She would like toinvestigate whether a relationship exists between the number ofpresentations made to prospective clients in a month and the numberof new clients per month. The following table shows the number ofpresentations and corresponding new clients for a random sample ofsix employees.

Employee	Presentations	New Clients
1	7	2
2	9	3
3	9	4
4	10	3
5	11	5
6	12	3

The manager would like to use simple regression analysis toestimate the number of new clients per month based on the number ofpresentations made by the employee per month. The 90% predictioninterval that estimates the number of new clients per month for anemployee who makes nine presentations per month is ________.

A.(2.90, 3.97)

B.(1.83, 5.04)

C.(0.82, 5.44)

D.(0.00, 6.86)

E.

(0.34, 4.66)