a-researcher-wants-to-determine-if-there-is-a-significant-difference-in-math-tes

Question

A researcher wants to determine if there is a significant difference in math test performance between students who use digital textbooks and those who use printed textbooks. The following data were collected:

Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use degrees of freedom equal to the smaller of $n sub 1 minus 1$ and $n sub 2 minus 1$ .

At the $0.05$ significance level, test the claim that there is no significant difference in mean test performance between the two groups.

Accepted Answer

At the $0.05$ significance level, there is not enough evidence to conclude that there is a significant difference in mean math test performance between students using digital and printed textbooks.

Answer

At the $0.05$ significance level, there is sufficient evidence to conclude that there is a significant difference in mean math test performance between students using digital and printed textbooks.