Arecent study focused on the number of times men and women send a twitter message in a day. the sample information is summarized here.
sample size - sample mean - population standard deviation
men 25 23 5
women 30 28 10
at the 0.01 significance level, we ask if there is 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?

Danielle has $127.02 in her account before making any transactions. over the course of a week, danielle makes the following transactions: transaction debit ($) credit ($) birthday check 75.00 night out 66.14 garage sale proceeds 121.58 charitable donation 42.25 doctor’s appointment 115.30 at the end of the week, how much money is in danielle’s account? a. $99.91 b. $27.11 c. $184.41 d. $142.16 select the best answer from the choices provided a b c d

Which value would be a solution for x in the inequality 47-4x< 7

In the figure below, triangle rpq is similar to triangle rts. what is the distance between p and q? a. 24 b. 42 c.50 d. 54