Earlier in this chapter, a 95% confidence interval for the mean ( known) was calculated for the

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Earlier in this chapter, a 95% confidence interval for the mean (σ known) was calculated for the SAT example

(N = 12). Assuming the sample mean (X = 550.00) and population standard deviation (σ = 100) stay the same . . .

a. What is the confidence interval for the mean for N = 25 students rather than 12?

b. What is the confidence interval for the mean for N = 50 students rather than 12?

c. What is the confidence interval for the mean for N = 100 students rather than 12?

d. What is the effect of increasing sample size on the width of the confidence interval?

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Fundamental Statistics For The Social And Behavioral Sciences

ISBN: 9781506377476

2nd Edition

Authors: Howard T Tokunaga

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Question Posted: May 23, 2024 05:07 AM

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Earlier in this chapter, a 95% confidence interval for the mean ( known) was calculated for the

Question:

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Fundamental Statistics For The Social And Behavioral Sciences

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