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Back to 8.1 A Confidence Interval When the Population Standard Deviation Is Known or Large Sample Size

8.1 Exercise 5

Avg difficulty 2.5

Suppose we change the original problem in the example to see what happens to the confidence interval if the sample size is changed.

Leave everything the same except the sample size. Use the original 90% confidence level. What happens to the confidence interval if we increase the sample size and use n = 100 instead of n = 36? What happens if we decrease the sample size to n = 25 instead of n = 36?

OpenStax Introductory Business Statistics 2e, 8.1 A Confidence Interval When the Population Standard Deviation Is Known or Large Sample Size, exercise 5

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.