Mathematics, 01.03.2021 23:30 erin93
As part of a project about response bias, Ellery surveyed a random sample of 25 students from her school. One of the questions in the survey required students to state their GPA aloud. Based on the responses, Ellery said she was 90% confident that the interval from 3.14 to 3.52 captures the mean GPA for all students at her school.
Required:
a. Interpret the confidence level.
b. Explain what would happen to the length of the interval if the confidence level were increased to 99%.
c. How would a 90% confidence interval based on a sample of size 200 compare to the original 90% interval?
d. Describe one potential source of bias in Ellery's study that is not accounted for by the margin of error.
Answers: 3
Mathematics, 21.06.2019 19:00
Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers
Answers: 1
Mathematics, 21.06.2019 19:20
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
Mathematics, 22.06.2019 01:00
Given the net of the rectangular prism, what is its surface area?
Answers: 1
Mathematics, 22.06.2019 03:00
Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =
Answers: 1
As part of a project about response bias, Ellery surveyed a random sample of 25 students from her sc...
Health, 21.10.2020 14:01
English, 21.10.2020 14:01
Biology, 21.10.2020 14:01
Chemistry, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
Engineering, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01