Based on a smartphone survey, assume that 42% of adults with smartphones use them in theaters. In a separate survey of 241 adults with smartphones, it is found that 98 use them in theaters. a. If the 42% rate is correct, find the probability of getting 98 or fewer smartphone owners who use them in theaters. b. Is the result of 98 significantly low?
Based on a smartphone survey, assume that 42% of adults with smartphones use them in theaters. In a separate survey of 241 adults with smartphones, it is found that 98 use them in theaters. a. If the 42% rate is correct, find the probability of getting 98 or fewer smartphone owners who use them in theaters. b. Is the result of 98 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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Based on a smartphone survey, assume that
42% of adults with smartphones use them in theaters. In a separate survey of
241 adults with smartphones, it is found that
98 use them in theaters.
a. If the
42% rate is correct, find the probability of getting
98 or fewer smartphone owners who use them in theaters.
b. Is the result of
98 significantly low?
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