A 95% confidence interval for p the proportion of supermarket customers who do not buy house-brand products at all is calculated as 32%. With a margin of error of E=±4%, z*=1.96 for a 95% C.L. a) The population proportion is b) The unbiased point estimator is e) What sample size is needed for a 95% confidence level (z*=1.96) and margin of error of E=±2% and sample proportion of 32%? Round your answer to the next whole number.

A 95% confidence interval for p the proportion of supermarket customers who do not buy house-brand products at all is calculated as 32%. With a margin of error of E=±4%, z=1.96 for a 95% C.L. a) The population proportion is b) The unbiased point estimator is e) What sample size is needed for a 95% confidence level (z=1.96) and margin of error of E=±2% and sample proportion of 32%? Round your answer to the next whole number.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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