1) If we take a simple random sample of size 40 from this
population and calculate the mean number of 3-point baskets, which
of the following best describes the shape of the sampling
distribution of means?
The correct choice is Approximately normal
Because n = 40, so by central limit theorem , the sampling
distribution of sample mean is approximately normal.
2) Which of the following statements best describes the
relationship between a parameter and a statistic?
The correct choice is A statistic is used to estimate a
parameter.
Statistic is also a random variable and parameter is a constant
and we use statistic toestimate the parameter.
3) The distribution of values from a single sample of size n
from a population is
The correct choice is the population distribution of the
variable.
4) To reduce the variability of estimates from a simple random
sample, you should
The correct choice is use a larger sample.
5) A sampling distribution is the probability distribution for
which one of the following?
The correct choice is A sample statistic