Mathematics, 11.02.2021 20:30 SMNS625
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: 2
Mathematics, 21.06.2019 19:30
Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28
Answers: 2
Mathematics, 22.06.2019 00:00
Round each decimal to the nearest thousandth. a. 5.39562 b. 0.12345 c. 5634 d. 18.93763
Answers: 1
Mathematics, 22.06.2019 02:30
How many and of which kind of roots does the equation f(x)=x3−x2−x+1
Answers: 2
As part of a project about response bias, Ellery surveyed a random sample of 25 students from her sc...
Advanced Placement (AP), 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
History, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Chemistry, 09.04.2021 01:00
History, 09.04.2021 01:00