Based on a smartphone survey, assume that 5454% of adults with smartphones use them in theaters. In a separate survey of 287287 adults with smartphones, it is found that 151151 use them in theaters. a. If the 5454% rate is correct, find the probability of getting 151151 or fewer smartphone owners who use them in theaters. b. Is the result of 151151 significantly low?
Based on a smartphone survey, assume that 5454% of adults with smartphones use them in theaters. In a separate survey of 287287 adults with smartphones, it is found that 151151 use them in theaters. a. If the 5454% rate is correct, find the probability of getting 151151 or fewer smartphone owners who use them in theaters. b. Is the result of 151151 significantly low?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Based on a smartphone survey, assume that 5454% of adults with smartphones use them in theaters. In a separate
survey of 287287 adults with smartphones, it is found that 151151 use them in theaters. a. If the 5454% rate is correct,
find the probability of getting 151151 or fewer smartphone owners who use them in theaters. b. Is the result of
151151 significantly low?
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