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Smartphones: A poll agency reports that 36% of teenagers aged 12-17 own smartphones. A random sample of 111 teenagers is drawn. Round your answers to
Smartphones: A poll agency reports that 36% of teenagers aged 12-17 own smartphones. A random sample of 111 teenagers is drawn. Round your answers to at least four decimal places as needed.Part 3 of 6 (c) Find the probability that more than 40% of the sampled teenagers own a smartphone. The probability that more than 40% of the sampled teenagers own a smartphone is .1894 X 5 Part: 3 / 6 Part 4 of 6 (d) Find the probability that the proportion of the sampled teenagers who own a smartphone is between 0.32 and 0.40. The probability that the proportion of the sampled teenagers who own a smartphone is between 0.32 and 0.40 is 6212 XPart 5 of 6 (e) Find the probability that less than 40% of sampled teenagers own smartphones. The probability that less than 40% of sampled teenagers own smartphones is .8106 X Part: 5 / 6 Part 6 of 6 (f) Would it be unusual if less than 28% of the sampled teenagers owned smartphones? It would be unusual if less than 28% of the sampled teenagers owned smartphones, since the probability is .0401 X
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