MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:Use the results from a survey of a simple random sample of 1077 adults. Among the 1077 respondents, 71% rated themselves as above average drivers. We want to test the claim that
rate themselves as above average drivers. Complete parts (a) through (c).
a. Identify the actual number of respondents who rated themselves as above average drivers.
765
(Round to the nearest whole number as needed.)
b. Identify the sample proportion and use the symbol that represents it.
= 0.71
(Type an integer or a decimal rounded to two decimal places as needed.)
c. For the hypothesis test, identify the value used for the population proportion and use the symbol that represents it.
(Type an integer or a decimal rounded to two decimal places as needed.)
13
of adults
20
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