1. Use the reported confidence interval to find the sample proportion, p, used to calculate the confidence interval. 2. Use the reported confidence interval to find the margin of error for the interval. ME = 3. Use the reported confidence interval to find the standard error for the interval. SE; = 4. Use the sample proportion and the standard error to calculate a 90% confidence interval using the same survey data.

Q: Assume you select an SRS of size 94 and give them a test. You calculate the mean test score in your…

A:

Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: The 95% confidence interval is (4,6).

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A: Confidence interval C.I= Point estimate +- Margin of error(ME) Confidence interval C.I=( lower…

Q: Construct the 90% confidence interval for the difference p1-p2 when x1=45, n1=85, x2=20, and n2=65.…

A: Given Information: x1=45n1=85x2=20n2=65c=90%=0.90

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.5​,84.7​)

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Q: Suppose that you are preparing to construct a 98% confidence interval for the population mean.  You…

A: Given Data : Sample Size, n = 27 Sample Mean, x̄ = 29.5 standard deviation,…

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Q: Use the given confidence interval to find the margin of error and the sample mean. (71.7, 87.3)

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Q: What percentage of hospitals provide at least some charity care? Based on a random sample of 10…

A: Solution: a. Let X be the percentage of hospitals provide at least some charity care. From the given…

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A: From the provided information, The data values are as follow: 9, 12, 13, 10 and 10 Sample size (n) =…

Q: A survey was conducted that asked 1013 people how many books they had read in the past year. Results…

A: The summary of statistics is, x¯=10.3,s=16.6,n=1013 The degree of freedom is, df =n -1      = 1013-1…