Suppose the standard deviation of the weight of all watermelons from this farm be 0.65 lbs. Is there enough evidence to suggest that the grocery store needs to get their watermelons from another source? Test the appropriate hypothesis by computing the p-value and comparing it to a 5% significance level. b) Suppose the weights of this single shipment of watermelons have a standard deviation of 0.65 lbs. Conduct a new hypothesis test to determine if the grocery store needs to find a new source of watermelons. Compute the p-value and compare it to a 5% significance level.

Select a graph that have an equation with a < 0

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.