The scores of a random sample of 100 high school students on a standardized mathematics test in a certain school gave a mean of 78 and a standard deviation of 20.Find the 95% confidence interval estimate for the true average score in mathematics in this standardized test. Formula: E=zα/2(σ/√n)
The scores of a random sample of 100 high school students on a standardized mathematics test in a certain school gave a mean of 78 and a standard deviation of 20.Find the 95% confidence interval estimate for the true average score in mathematics in this standardized test. Formula: E=zα/2(σ/√n)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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The scores of a random sample of 100 high school students on a standardized mathematics test in a certain school gave a mean of 78 and a standard deviation of 20.Find the 95% confidence
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