A population has a mean=81 and a standard deviation=9. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=81.

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Part 1

x=enter your response here

(Simplify youranswer.)

The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n=75,

find the probability of a sample mean being greater than 220 if=219 and=3.7.

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Part 1

For a sample of n=75, the probability of a sample mean being greater than 220 if=219 and=3.7 is

enter your response here.

(Round to four decimal places asneeded.)

The heights of fully grown trees of a specific species are normallydistributed, with a mean of 58.5 feet and a standard deviation of 7.00 feet. Random samples of size 14 are drawn from the population. Use the central limit theorem to find the mean and standard error of the sampling distribution. Then sketch agraph of the sampling distribution.

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Part 1

The mean of the sampling distribution is

x=enter your response here.

The standard error of the sampling distribution is

x=enter your response here.

(Round to two decimal places asneeded.)

Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution. Then sketch a graph of the sampling distribution.

The per capita consumption of red meat by people in a country in a recent year was normallydistributed, with a mean of 101 pounds and a standard deviation of 39.8 pounds. Random samples of size 15 are drawn from this population and the mean of each sample is determined.

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Part 1

x=enter your response here

The mean height of women in a country(ages 2029) is 64.2 inches. A random sample of 60

women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? Assume=2.94.

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Part 1

The probability that the mean height for the sample is greater than 65 inches is

enter your response here.

(Round to four decimal places asneeded.)