Question

t-Tests

1. A t-test is used to:

2. Most statistical tools use a .05 significance level. Explain what that means.

3. Men versus women were compared for their level of willingness to disclose their sexual history to a dating partner when the relationship begins to get serious. Their scores are shown below. Using a t-test as the statistical tool, write a null hypothesis and an alternative hypothesis for this example. From the data below, fill out the chart and follow the 11 steps on page 342 to compute the t-test, compare it with t critical, answer the hypothesis, and interpret your findings.

1. Null hypothesis:

2. Alternative hypothesis:

Couple #	Column 1 Men	Column 2	Column 3 Women	Column 4
1	19		16
2	24		12
3	21		30
4	23		15
5	26		19
6	16		16
7	15		14
8	24		18
9	16		15
10	19		20
11	32		15
12	18		17
13	25		10

3. Step 4:
4. Step 5:
5. Step 6:
6. t =
7. df =
8. Critical t =
1. Interpretation =

Answer 1