In an independent samples t-test…
A) The population mean is known but the population standard deviation is unknown.
B) The population mean and population standard deviation are unknown.
C) The sample mean is known but the sample standard deviation is unknown.
D) The population mean and the sample standard deviation are unknown.

Question

Quizplus · Accepted Answer

In an independent samples t-test, both the population mean and the population standard deviation are unknown. The test compares the means of two independent groups to determine if there is a statistically significant difference between them, using sample data to estimate these unknown population parameters.

In an Independent Samples T-Test…