For a population data set, σ = 17.60.a. What should the sample size be for a 98% confidence interval for µ to have a margin of error of estimate equal to 6.20?n =b. What should the sample size be for a 95% confidence interval for µ to have a margin of error of estimate equal to 4.51?n=

For a population data set, σ = 17.60.a. What should the sample size be for a 98% confidence interval for µ to have a margin of error of estimate equal to 6.20?n =b. What should the sample size be for a 95% confidence interval for µ to have a margin of error of estimate equal to 4.51?n=

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 14PPS

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Question

For a population data set, σ = 17.60.
a. What should the sample size be for a 98% confidence interval for µ to have a margin of error of estimate equal to 6.20?
n =
b. What should the sample size be for a 95% confidence interval for µ to have a margin of error of estimate equal to 4.51?
n=

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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