Author Question: The standard deviation of a statistic that is used to estimate an unknown parameter is called the ... (Read 51 times)

robinn137 · **on:** Jul 24, 2018

The standard deviation of a statistic that is used to estimate an unknown parameter is called the standard error of the statistic.
Indicate whether the statement is true or false

Question 2

Which of the following is not a required assumption for constructing a confidence interval estimate of the difference between two population means when the samples are small?
a. The populations are normally distributed.
b. The population variances are equal.
c. The population variances are equal to 1.
d. The samples are selected at random from the populations.
e. The population variances are equal and the population variances are equal to 1.