Use the following sample to estimate a population mean . 56 79.3 86 85.8 80.5 79.9 81.5 81.1 81 96.4 Assuming the population is normally distributed, find the 99.5% confidence interval about the population mean. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places. 99.5% C.1. =

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Q: Using the accompanying Accounting Professionals data to answer the following questions. a. Find and…

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Q: Which of the following would increase the width of a confidence interval for a population mean?

A:

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Q: To compute the confidence interval use a     distribution. b. With 90% confidence the population…

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A: Data given 6.0650,6.0650,6.0590,6.0570,6.0700,6.0730

Q: Suppose the 90% confidence interval for a population mean is (20, 55). What is the point estimate…

A:

Q: Which of the following describes the function of a confidence interval? Select one: a. It uses a…

A: Given Options, a. It uses a sample mean to estimate the population mean b. It uses a population mean…

Q: A confidence interval for a population mean has a margin of error of 2.2.   a. Determine the length…

A: a) Given margin of error=2.2 Length=2*margin of error=4.4 The length of the confidence interval is…

Q: eBook A simple random sample of 60 items resulted in a sample mean of 80. The population standard…

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Q: A confidence interval for a population mean has a margin of error of 2.2. a. Determine the length of…

A: Given information Margin of error E = 2.2 Sample mean x-bar = 53.5

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Q: Find the 95% interval estimate given the following information: the population standard deviation is…

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Q: Find the 95% interval for the population deviation with the data from the following sample. 14 21…

A: It is given that the sample of 40 observations.

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A: given that,sample data: (63 , 88 , 82.5 , 95.1 , 76.1 , 75.5 , 98.5 , 102.8 , 88.2 , 91.9 , 69.5 )…

Q: In a random sample of twelve people, the mean driving distance to work was 18.9 miles and the…

A: given data, normal dsitribution ,n=12x¯=18.9s=6.3we use t- distribution and find out the confidence…

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Q: Find the mean for the given sample data. Unless otherwise specified, round your answer to one more…

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A: Step-by-step procedure to obtain the 98% confidence interval for them mean of the population  using…

Q: Find the mean for the given sample data. Unless otherwise specified, round your answer to one more…

A: The data values are: 578, 578, 358, 346, 499, 347, 353, 547, 470, 482 Total number of values (n) =…

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Q: Use the following sample to estimate a population mean �. 18.4 32.2 33.1 -2.1 36.6 -8…

A: The 95% confidence interval for the population mean is approximately (9.76, 31.64). 95% C.I. =…

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A: Preliminary calculations:Using the excel formula, “=AVERAGE(A1:A28)” mean, x-bar is obtained as…

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A: Given,margin of error(E)=5standard deviation(s)=15α=1-0.98=0.02α2=0.01Zα2 =2.33

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A: Number of social networking sites =6Mean=13Standard deviation = 3.2The confidence interval formula…

Q: Determine whether the statement below makes sense or does not make sense. Explain clearly.

A: Here given , Based on our sample, the 95% confidence interval for the mean amount of television…

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Q: A market surveyor wishes to know how many energy drinks teenagers drink each week. They want to…

A: Population standard deviation()=1.3Margin of error(E)=0.06

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Q: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Given information Sample size (n) = 49 Sample mean x̅ = 55.1 Standard deviation (s) = 4.8…

Q: a. To compute the confidence interval use a ? distribution. b. With 95% confidence the population…

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