6.4; Based on a smartphone survey, assume that 60% of adults with smartphones use them in theaters. In a separate survey of 247 adults with smartphones, it is found that 131 use them in theaters....

6.4;

Based on a smartphone survey, assume that

60%

of adults with smartphones use them in theaters. In a separate survey of

247

adults with smartphones, it is found that

131

use them in theaters.

a. If the

60%

rate is correct, find the probability of getting

131

or fewer smartphone owners who use them in theaters.

b. Is the result of

131

significantly low?

Jun 08, 2022

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