Question

I want to know if students in my 9am lab different significantly from students in my 11am lab on Exam 1 test scores. The 23 people in my 9am lab score an average of 85 on Exam #1 (Ŝ= 4.65), while the 23 people in my 11am lab score an average of 84 on Exam #1 (S=5.12). What test would I use, given the information provided? Why?

Answer 1

To determine if there is a significant difference in test scores between students in the 9am lab and 11am lab, you can use a two-sample t-test.

Step-by-step explanation:

To determine if there is a significant difference in test scores between students in the 9am lab and 11am lab, you can use a two-sample t-test. This test is appropriate when comparing the means of two independent groups.

In this case, you have two groups: the 23 students in the 9am lab and the 23 students in the 11am lab. You can calculate the t-value by subtracting the mean of the 11am lab from the mean of the 9am lab and dividing it by the standard error of the difference in means.

Once you have the t-value, you can compare it to the critical value from the t-distribution table at the desired significance level (e.g., 5% or 0.05). If the t-value is greater than the critical value, you can conclude that there is a significant difference in test scores between the two labs.