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You select a random sample of nequals=14 families in your neighborhood and find the following family sizes? (number of people in the? family).

a. What is the mean family size for the? sample?

The mean family size for the sample is 8.4.

?(Round to the nearest tenth as? needed.)

b. What is the standard deviation for the? sample?

The standard deviation for the sample is 1.3.

?(Round to the nearest tenth as? needed.)

c. What is the best estimate for the mean family size for the population of all families in a? country?

An estimate for the mean family size for the population is 8.4.

?(Round to the nearest tenth as? needed.)

d. What is the? 95% confidence interval for the? estimate?

_________<μ<__________

?(Round to the nearest tenth as? needed.)

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