We provide a sample mean, sample size, population standard deviation, and confidence level. In each case, perform

Question:

We provide a sample mean, sample size, population standard deviation, and confidence level. In each case, perform the following tasks:

a. Use the one-mean z-interval procedure to find a confidence interval for the mean of the population from which the sample was drawn.

b. Obtain the margin of error by taking half the length of the confidence interval.

c. Obtain the margin of error by using Formula 8.1.

Formula 8.1

The margin of error for the estimate of μ is z_α/2 · σ/ √n, which is denoted by the letter E. Thus,

x̄ = 20, n = 36, σ = 3, confidence level = 95%

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Elementary Statistics

ISBN: 9780321989390

9th Edition

Authors: Neil A Weiss

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Question Posted: Dec 07, 2022 03:30 AM

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We provide a sample mean, sample size, population standard deviation, and confidence level. In each case, perform

Question:

E = Zα/2.0/√n.

Step by Step Answer:

a The approximate 95 confidence interval for p is b ...View the full answer

Elementary Statistics

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