Arecent study focused on the number of times men and women send a twitter message in a day. the sample information is summarized below. at the .01 significance level, is there a difference in the mean number of times men and women send a twitter message in a day? what is the test statistic for this hypothesis?

The bike store marks up the wholesale cost of all the bikes they sell by 30% and andre wants to buy a bike that has a price tag of 125 what was the wholesale cost of the bike

What is the value of the expression below? 148+(-6)| + |– 35= 7|

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.