2.Practice using the t-table in the Appendix.Complete the following table by filling in the degrees of freedom, the critical value, and whether you would reject or fail to reject the null.
Sample size
Level of significance
Obtained t-value(step 4)
Degrees of freedom
Critical t-value(step 3)
Reject or fail to reject null
15
.05
1.692
237
.01
-2.021
41
1.723
101
2.621
27
-2.754
2a.
2b.
2c.
2d.
2e.
3.You now want to see if your sample is representative of the population in terms of race.Can you use the single sample t-test?Why or why not?
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