4. Suppose a study conducted on where people turn for news was based on 400 respondents. Of the 400 respondents, 199 got their news primarily from newspapers. (a) Calculate the point estimate and standard error of the proportion of people who get their news primarily from newspapers. (b) Is there evidence that the proportion of people who get their news primarily from newspapers is 0.5 or more? (use a = 0.01) (c) Determine the p-value in (b).

4. Suppose a study conducted on where people turn for news was based on 400 respondents. Of the 400 respondents, 199 got their news primarily from newspapers. (a) Calculate the point estimate and standard error of the proportion of people who get their news primarily from newspapers. (b) Is there evidence that the proportion of people who get their news primarily from newspapers is 0.5 or more? (use a = 0.01) (c) Determine the p-value in (b).

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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