Mathematics, 26.06.2019 18:00, vanessacox45
Arecent study of high school students shows the percentage of females and males who have an after-school job. a simple random sample of high school students was interviewed. the students were asked whether they worked after school. of the 250 females, 58 answered yes, as did 113 of the 380 males. part a: construct and interpret a 95% confidence interval for the difference in population proportions of females and males who have an after-school job. be sure to state the parameter, check conditions, perform calculations, and make conclusion(s). (8 points)part b: does your interval from part a give convincing evidence of a difference between the population proportions? explain. (2 points)
Answers: 2
Mathematics, 21.06.2019 16:20, amortegaa805
Which best explains why this triangle is or is not a right triangle?
Answers: 1
Mathematics, 21.06.2019 18:20, nehaljay1883
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%
Answers: 1
Arecent study of high school students shows the percentage of females and males who have an after-sc...
Mathematics, 05.02.2021 19:30
Mathematics, 05.02.2021 19:30
Mathematics, 05.02.2021 19:30