Answered: that a response to ecolabel E falls…

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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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.

A. No, because the probability that a response is 35 or less is less than 0.05.

B. Yes, because the probability that a response is 35 or less is greater than 0.05.

C. Yes, because the probability that a response is 35 or more is greater than 0.05.

D. No, because the probability that a response is 35 or more is less than 0.05.

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