Suppose we are testing a null hypothesis about the population mean of a normally distributed population.If the population standard deviation is unknown and n = 14,the appropriate test statistic is based on the ___________ distribution.
A)t
B)z
C)F
D)chi-square
E)exponential

Question

Quizplus · Accepted Answer

When the population standard deviation is unknown and the sample size is small (less than 30), we use the t-distribution to make inferences about the population mean. Therefore, the appropriate test statistic is based on the t-distribution.

Suppose We Are Testing a Null Hypothesis About the Population