! Required information The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample of 140 servings. The average was 11.9 g and the standard deviation was 1.1 g. How large a sample is needed so that a 95% confidence interval specifies the mean to within ±0.3? Round up the answer to the nearest integer. 94

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Required information
The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample of 140 servings. The
average was 11.9 g and the standard deviation was 1.1 g.
How large a sample is needed so that a 95% confidence interval specifies the mean to within ±0.3? Round up the answer to the
nearest integer.
94
Transcribed Image Text:! Required information The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample of 140 servings. The average was 11.9 g and the standard deviation was 1.1 g. How large a sample is needed so that a 95% confidence interval specifies the mean to within ±0.3? Round up the answer to the nearest integer. 94
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