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Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a separate survey of 228 adults with smartphones, it is found that 76 use them in theaters. a. If the 40% rate is correct, find the probability of getting 76 or fewer smartphone owners who use them in theaters. b. Is the result of 76 significantly low? a. If the 40% rate is correct, the probability of getting 76 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.)

Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a separate survey of 228 adults with smartphones, it is found that 76 use them in theaters. a. If the 40% rate is correct, find the probability of getting 76 or fewer smartphone owners who use them in theaters. b. Is the result of 76 significantly low? a. If the 40% rate is correct, the probability of getting 76 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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 a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a separate survey of 228 adults with smartphones, it is found that 76 use them in theaters. a. If the 40% rate is correct, find the probability of getting 76 or fewer smartphone owners who use them in theaters. b. Is the result of 76 significantly low? a. If the 40% rate is correct, the probability of getting 76 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.)
Transcribed Image Text:Based on a smartphone survey, assume that 40% of adults with smartphones use them in theaters. In a separate survey of 228 adults with smartphones, it is found that 76 use them in theaters. a. If the 40% rate is correct, find the probability of getting 76 or fewer smartphone owners who use them in theaters. b. Is the result of 76 significantly low? a. If the 40% rate is correct, the probability of getting 76 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.)
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