Based on a smartphone survey, assume that 50% of adults with smartphones use them in theaters. In a separate survey of 292 adults with smartphones, it is found that 142 use them a. If the 50% rate is correct, find the probability of getting 142 or fewer smartphone owners who use them in theaters. b. Is the result of 142 significantly low? theaters. a. If the 50% rate is correct, the probability of getting 142 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 142 significantly low? v because the probability of this event is v than the probability cutoff that corresponds to a significant event, which is

Based on a smartphone survey, assume that 50% of adults with smartphones use them in theaters. In a separate survey of 292 adults with smartphones, it is found that 142 use them a. If the 50% rate is correct, find the probability of getting 142 or fewer smartphone owners who use them in theaters. b. Is the result of 142 significantly low? theaters. a. If the 50% rate is correct, the probability of getting 142 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 142 significantly low? v because the probability of this event is v than the probability cutoff that corresponds to a significant event, which is

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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