Author Question: If two samples are selected from the same population, under what circumstances will the two samples ... (Read 57 times)

Evvie72 · **on:** Jun 20, 2018

If two samples are selected from the same population, under what circumstances will the two samples have exactly the same t statistic?

a. The samples are the same size and have the same variance
b. The samples are the same size and have the same mean
c. The samples have the same mean and the same variance
d. The samples are the same size and have the same mean and the same variance

Question 2

If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic?

a. You must know the population mean.
b. You must know the population variance or standard deviation.
c. You must know the population mean and the variance or standard deviation.
d. The t statistic does not require any information about the population.