Kaylin is a running back on her football team. in her last game she ran the ball 3 times gaining yd on her first carry, losing yd on her second carry, and gaining yd on her third carry. her coach, eric used a calculator to find that the net yardage was 40 yd. (
a. estimate kaylin’s net yardage for her 3 carries. show your work. (note: net yardage is the number of yards gained or lost after all 3 carries of the ball.) (
b. was coach eric’s answer reasonable? why or why not? (
c. determine kaylin’s exact net yardage. show your work.

Arecent study focused on the number of times men and women who live alone buy take-out dinner in a month. assume that the distributions follow the normal probability distribution and the population standard deviations are equal. the information is summarized below. statistic men women sample mean 24.85 21.33 sample standard deviation 5.54 4.93 sample size 34 36 at the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month? state the decision rule for 0.01 significance level: h0: μmen= μwomen h1: μmen ≠ μwomen. (negative amounts should be indicated by a minus sign. round your answers to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? what is the p-value? (round your answer to 3 decimal places.)