In a sample of 42 iPhones, 17 had over 97 apps downloaded. Construct a 99% confidence interval for the population proportion of all iPhones that obtain over 97 apps. Assume 20.005 -2.576. Multiple Choice O 0.17 ± 0.20 017: 0.09 0.40 ±0.19 0.40 10.20

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