Among 240 smartphone owners aged 18-24 surveyed, 108 said their phone was an Android phone. Find a point estimate for the proportion of smartphone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of smartphone owners aged 18-24 who have an Android phone is _

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A:

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A: It is given asn = 1000p = 0.25

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A:

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A:

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A: LotConforming Non conformingTotalA9010100B16634200C25743300Total51387600

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A: Mean = mu=190Standard deviation=sigma=39Z score=(x-mu)/sigma

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A: n=22, M=64.3

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Q: 20. Referring to that information, if the firm wanted to test whether this proportion has changed…

A: It is given asn1 = 150,    p1^ = 66% = 0.66n2 = 160,    p2^ = 60% = 0.60Note: According to Bartleby…