2 A physics instructor believes natural light improves learn

2. A physics instructor believes natural light improves learning and randomly assigns a total of 50 students to a natural light condition or an artificial light condition. Both groups receive a learning task and are given a test scored as number correct. What conditions will you assess for the appropriate statistical test for this study?

a. Are the scores normally distributed in each condition?

b. Does the relationship appear linear?

c. Do the groups have similar standard deviations?

d. Is the sample randomly selected?

I know this question may seem like a few ansewrs may be correct but it apparently only has 1 correct answer. Please help!!

Solution

A totalof 50 students were randomly assigned to to a natural light condition or an artificial light condition. Both the groups receive a learning task and are given a test scored as number correct. Now, the all the given options are true but only condition to be assesed for an appropriate statistical test for this study is a.Are the scores normally distributed in each condition? Then we can go for t test, z test or chi square test.