Based on a smartphone survey, assume that 41% of adults with smartphones use them in theaters. In a separate survey of 223 adults with smartphones, it is found that 90 use them in theaters. ← a. If the 41% rate is correct, find the probability of getting 90 or fewer smartphone owners who use them in theaters. b. Is the result of 90 significantly low? a. If the 41% rate is correct, the probability of getting 90 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 90 significantly low? because the probability of this event is than the probability cutoff that corresponds to a significant event, which is

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section: Chapter Questions
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Based on a smartphone survey, assume that 41% of adults with smartphones use them in theaters. In a separate survey of 223 adults with smartphones, it is found that 90 use them
in theaters.
a. If the 41% rate is correct, find the probability of getting 90 or fewer smartphone owners who use them in theaters.
b. Is the result of 90 significantly low?
a. If the 41% rate is correct, the probability of getting 90 or fewer smartphone owners who use them in theaters is
(Round to four decimal places as needed.)
b. Is the result of 90 significantly low?
because the probability of this event is
than the probability cutoff that corresponds to a significant event, which is
Transcribed Image Text:← Based on a smartphone survey, assume that 41% of adults with smartphones use them in theaters. In a separate survey of 223 adults with smartphones, it is found that 90 use them in theaters. a. If the 41% rate is correct, find the probability of getting 90 or fewer smartphone owners who use them in theaters. b. Is the result of 90 significantly low? a. If the 41% rate is correct, the probability of getting 90 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 90 significantly low? because the probability of this event is than the probability cutoff that corresponds to a significant event, which is
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