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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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Based on information from a previous study, r₁ = 38 people out of a random sample of n₁ = 105 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n₂ = 105 adult Americans who did attend college, r₂ = 49 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend college? Use α = 0.01.

1. What is the value of the sample test statistic? (Test the difference p₁ − p₂. Do not use rounded values. Round your final answer to two decimal places.)

2. Find (or estimate) the P-value. (Round your answer to four decimal places.)

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