Answer:
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