Answered: The Ignorance Survey: United Kingdon…

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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The Ignorance Survey: United Kingdon

Exercise 4.113 refers to a survey used to assess the ignorance of the public to global population trends. A similar survey was conducted in the United Kingdom, where respondents were asked if they had a university degree. One question asked, “In the last 20 years the proportion of the world population living in extreme poverty has …,” and three choices were provided: 1)“increased” 2) “remained more or less the same,” and 3) “decreased.” Of 373 university degree holders, 45 responded with the correct answer: decreased; of 639 non-degree respondents, 57 responded with the correct answer.³⁵ We would like to test if the percent of correct answers is significantly different between degree holders and non-degree holders.

(a)

What are the null and alternative hypotheses?

(b)

Using StatKey or other technology, construct a randomization distribution and compute the p-value.

(c)

State the conclusion in context

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