Question

When estimating a population mean by a sample mean, the margin of error

does NOT depend on ______.

A) The confidence level B) The sample mean C) The sample size D) The population standard deviation

What is the sampling distribution of a statistic?

A) The distribution of observations of the statistic for all possible sizes of samples from a population

B) The distribution of all possible observations of the statistic for samples of a given size from a population

C) The distribution of observations of a variable in a sample for a given value of the statistic

For the population of one town, the number of siblings is distributed in a reverse J-shape with a mean of 1.3 and a

standard deviation of 1.5. Determine the sampling distribution of the mean for samples of size 35.

A) Approximately normal, mean = 1.3, standard deviation = 1.5

B) Approximately normal, mean = 1.3, standard deviation = 0.25

C) Exactly Normal, mean = 1.3, standard deviation = 1.5

D) Exactly Normal, mean = 1.3, standard deviation = 0.25

Answer 1