Ages of young people participating in a community service program are listed below. With alpha equal to .05, and variances assumed to be equal, two-tailed independent samples t-test.

Ages of participants

Male Female

20 18

12 17

17 19

14 15

18 20

15 16

Male mean = 16 Female mean= 17.5

Male s= 2.90 Female s= 1.87

Step 1: State the H₀ and the H₁.

Step 2: Calculate the df:

Step 3: Identify the critical value for = .05 and state the decision rule.

Step 4: Calculate the obtained value of t.

Step 5: Conclusion