A sample is used to estimate the population proportion p, find the Margin of Error E that corresponds to 90% (? = 0.10) confidence level where the sample is 400 and there are 320 successes. (A) 0.0404 (B) 0.0560 (C) 0.0320 (D) 0.0630 Suppose that a sample of adults has sample size 1007 with a sample proportion of = 0.850 and margin of error E = 0.022 then the confidence interval for the population proportion p is: (A) ̶ 0.022 < p < 0.022 (B) 0.828 < p < 0.872 (C) ̶ 0.850 < p < 0.850 (D) 0.890 < p < 0.940

The formula for sample proportion is, The margin of error is, The formula for computing…

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A sample is used to estimate the population proportion p, find the Margin of Error E that corresponds to 90% (? = 0.10) confidence level where the sample is 400 and there are 320 successes.

(A) 0.0404 (B) 0.0560

Suppose that a sample of adults has sample size 1007 with a sample proportion of = 0.850 and margin of error E = 0.022 then the confidence interval for the population proportion p is:

(A) ̶ 0.022 < p < 0.022 (B) 0.828 < p < 0.872

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