#8 A survey of the mean number of cents off that coupons give was conducted by randomly surveying one coupon per page from the coupon sections of a recent San Jose Mercury News. The following data were collected:15; 80; 50; 65; 30; 55; 40; 40; 30%; 55; $1.50; 40; 65; 40%. Assume the underlying distribution is approximately normal.NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)O Part (a)(1) Round your answer to two decimal places.(ii) Round your answer to two decimal places.Sy =(iii) Enter an exact number as an integer, fraction, or decimal.n =(iv) Enter an exact number as an integer, fraction, or decimal.n-1=O Part (b)In words, define the random variables X and X.O X is the number of coupons on a page, and X is the average number of coupons on a page.O Xis the number of cents off for a coupon, and X is the average number of cents off for a sample of coupons.O Xis the numberI coupons on a page, and X is the average number of coupons on a page.O Xis the number of cents off for a coupon, and X is the average number of cents off for a sample of coupons.

A survey of the mean number of cents off that coupons give was conducted by randomly surveying one coupon per page from the coupon sections of a recent San Jose Mercury News. The following data were collected: 15%; 80%; 50; 65%; 30%; 55; 40%; 40#; 30f; 55%; $1.50; 40%; 65; 40%. Assume the underlying distribution is approximately normal. NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) O Part (a) (i) Round your answer to two decimal places. x= (ii) Round your answer to two decimal places. S = (iii) Enter an exact number as an integer, fraction, or decimal. n= (iv) Enter an exact number as an integer, fraction, or decimal. n-1= O Part (b) In words, define the random variables X and X. O X is the number of coupons on a page, and X is the average number of coupons on a page. O Xis the number of cents off for a coupon, and X is the average number cents off for a sample of coupons.