Asurvey 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: 20% 75c; 50c; 65c; 300; 55 40c; 40c; 30c; 55, $1.50; 400; 65; 40c. assume the underlying distribution is approximately normal. a. b. c. d. define the random variables x and x in words. which distribution should you use for this problem? explain your choice. construct a 95% confidence interval for the population mean worth of coupons. i. state the confidence interval

Explanation has been given in the attachment.

Step-by-step explanation:

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.