Twenty-one students were asked at random how much they spent for classroom textbooks this semester. The sample standard deviation was found to be s=$28.70. How many more students should be included in the sample to be 90% sure that the sample mean x̄ is within $7 of the population mean μ for all students at this college? Take note of the number of sample size given.
Twenty-one students were asked at random how much they spent for classroom textbooks this semester. The sample standard deviation was found to be s=$28.70. How many more students should be included in the sample to be 90% sure that the sample mean x̄ is within $7 of the population mean μ for all students at this college? Take note of the number of sample size given.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Twenty-one students were asked at random how much they spent for classroom textbooks this semester. The sample standard deviation was found to be s=$28.70. How many more students should be included in the sample to be 90% sure that the sample mean x̄ is within $7 of the population mean μ for all students at this college? Take note of the number of
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