Statistical analysis in random sample

Reference no: EM13127191

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

a) What is the mean family size for the sample? I think the answer here is all the above #'s * 14=7.37143
The mean family size for the sample is _7.36

b) What is the standard deviation for the sample?_______( round to the nearest tenth)

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

d) What is the 95% confidence interval for the estimate? _____< µ < ____

e) Comment on the reliability of the estimate. Choose below

(a) The sample is likely to be representative of all families in a country

(b) The sample is unlikely to be very representative of all families in a country

Reference no: EM13127191

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