What are the critical values x2L and x2r that correspond to a 95% confidence level and a sample size of 91? a. 65.647, 118.136
b. 57.143, 106.629
c. 59.196, 128.299
d. 69.196, 113.145

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Each day jake donates money to the global.

Novak gives 9 packs of paper to a group of 5 students. if the group shares the paper equally how many packs of paper does each student get. write the a answer as a mixed number