Question

To test the effect of partial day care on academic performance in young children, you plan to use two groups of 4-year-olds from the same preschool class: one group is made up of randomly selected children who attend part-time day care; the other group includes randomly selected children who do not attend any day care other than preschool. Both groups will complete a brief test of academic performance during a regular preschool class. Which type of test should you use to compare the mean scores of the two groups

Answer 1

Independent samples t test

Explanation:

The experiment performed above, required the independent samples t test as it invilves two seperate and distinct, otherwise called independent groups whereby one group has no effect on the outcome of the other. The means a ND standard deviation of the first group (4 year Olds who attend part time daycare) and the other group (4 year Olds who do not attend part time daycare). Hence, the comparison can be made using the two independent samples t test ;

With possible hypothesis relation being :

H0 : μ1 = μ2

H1 : μ1 ≠ μ2