100 points !
write an equation that represents the following word problem. the average teenager spends 2.9 hours a day watching television. how much time do they spend each week watching television?

a. w = 2.9 ÷ 7
b. w = (2.9)(7)
c. 2.9w = 7
d. 7w = 2.9

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the