​Claim: Fewer than 95​% of adults have a cell phone. In a reputable poll of 1073 ​adults, 90​% said that they have a cell phone. Find the value of the test statistic.   Please explain how to do it on the calculator

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Q: P(z > c) = 0.4211

A: Solution

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A: Given Sample size (n) = 15 Confidence interval= 90%

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Q: b. What is the​ p-value?

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A: 38,48,50,84 a) Mean=Sum of observations/No: of observations =38+48+50+84/4 =220/4 =55

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Q: how did you get 0.45? (part a.)

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A: a) Hypotheses: H0: p ≤ 0.34H1: p > 0.34  claim

Q: ies yt for t = 1, 2, …, 500.

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Q: 23 56 35 68 47 37 12 13 18 56 32 126 12 120 55 158 73 12 171 142 47 a 158 4 72 21 8 23 25 154 18 151…

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A: if Eθ^=θ then θ^ is said to be unbiased estimate for θ.

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A: Given: Time  Frequency 15-17 5 18-20 7 21-23 15 24-26 10 27-29 3

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A: We have to find the 98% confidence interval.