A sample of size 8 has a mean of 81 and a standard deviation of 14. Assuming the population is normally distributed, find a 95% confidence interval for u O a. (69.30,92.70) O b. (77.68,84.32) O c.(71.99,90.01) O d. (-17.28,179.30) Oe. None of these

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A sample of size 8 has a mean of 81 and a standard deviation of 14. Assuming the population
is normally distributed, find a 95% confidence interval for u
O a. (69.30,92.70)
O b. (77.68,84.32)
O c. (71.99,90.01)
O d. (-17.28,179.30)
O e. None of these
Transcribed Image Text:A sample of size 8 has a mean of 81 and a standard deviation of 14. Assuming the population is normally distributed, find a 95% confidence interval for u O a. (69.30,92.70) O b. (77.68,84.32) O c. (71.99,90.01) O d. (-17.28,179.30) O e. None of these
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