A confidence interval for a population mean has length 20. a) Determine the margin of error. b) If the sample mean is 57.5, obtain the confidence interval. Confidence interval: ( 1).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1CYU
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A confidence interval for a population mean has length 20.
a) Determine the margin of error.
b) If the sample mean is 57.5, obtain the confidence interval.
Confidence interval: (
1).
Transcribed Image Text:A confidence interval for a population mean has length 20. a) Determine the margin of error. b) If the sample mean is 57.5, obtain the confidence interval. Confidence interval: ( 1).
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