MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A journal published a study of travelers' familiarity with ecolabels used by hotels. Adult travelers were shown a list of 6 different ecolabels, and asked, "How familiar are you with this ecolabel?" Suppose the response is measured on a continuous scale from 10 (not familiar at all) to 50 (very familiar), and the mean and standard deviation for ecolabel E are 44.4 and 1.7, respectively. Assume the distribution of responses is approximately normal. Complete parts a through c.
a. Find the probability that a response to ecolabel E exceeds
42.
b. Find the probability that a response to ecolabel E falls between
40 and 46.
c. If a response of 35 to an ecolabel was observed, is it likely that the ecolabel shown was ecolabel E? Explain.
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