Find the indicated confidence interval. Assume the standard error comes from a bootstrap distribution that is approximately normally distributed. A 95% confidence interval for a proportion p if the sample has n=500 with p^=0.42, and the standard error is SE=0.02. Round your answers to three decimal places. The 95% confidence interval is to .

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A: Solution

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A: The summary of statistics is, x1¯=60,s1=12,n1=37,x2¯=50,s2=6,n2=39

Q: I want to construct a confidence interval (CI) for estimating the population mean of IQ scores. I…

A: As per the solution the sampled observations are n=65

Q: Part A: Make a 90% confidence interval for given that you have a sample of size 49 which produced a…

A: Given,margin of error(E)=0.2standard error(σ)=3.2α=1-0.90=0.10α2=0.05Z0.05=1.645      (from Z-table)

Q: A confidence interval for μ1 − μ2 can be constructed, write down the expression.

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A:

Q: All the necessary values have been found to find the 95% confidence interval. We have x = 832, Za/2…

A: From the provided information, x̄ = 832 Zα/2 = 1.960 σ = 150 and n= 100

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Q: Express the confidence interval 81.9%.   ±.   4.6%.  in interval form.

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Q: Find the indicated confidence interval. Assume the standard error comes from a bootstrap…

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Q: A city planner wants to estimate the average monthly residential water usage in the city. He…

A: As per guideline expert have to be answer first question only..

Q: Find the indicated confidence interval. Assume the standard error comes from a bootstrap…

A: We have to create 95% confidence interval for difference in proportion.

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A:

Q: The confidence interval for a population porportion is (0.68, 0.82). What the the sample proportion…

A: Given, Confidence Interval is (0.68, 0.82) Upper limit U  = 0.82 Lower limit L = 0.68

Q: Estimate and report the number of meals you eat out per week. Assume the standard deviation is known…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.