A telephone poll of 841 adult Americans was reported in an issue of Time Magazine. One of the questions asked was, "What is the main problem facing the country?" Forty percent answered, "crime." Construct a 88% confidence interval for the population proportion of Americans who feel that crime is the main problem. p'= α2= zα2= Margin of Error: E We are 88% confident that the proportion of Americans who feel that crime is the main problem is between

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A: x¯1=69, s1=19, n1=38x¯2=32, s2=14, n2=37

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A: sample size(n)=56Mean(x)=3.94standard deviation(s)=3.43confidence level=90%

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A: n=8 Sample sizex= 9.8 Sample mean s= 0.4 Sample standard deviation

Q: Assume a researcher wants to compare the mean Alanine Aminotransferase (ALT) levels in two…

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A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

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A: Confidence interval is an estimation technique is statistics.

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Q: в, — 42, s — 8.8, SS,, — 64, п — 19 90% : < B1< 99% : < B1 S

A: Given   beta cap1 =42, s=8.8, SS xx =64 , n = 19

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A: Given,sample size(n)=15sample mean(x)=3.15standard deviation(σ)=0.22α=1-0.80=0.2α2=0.1Z0.1=1.2816

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