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True or False: 1. The number of degrees of freedom for a test of independence is...

True or False:

1. The number of degrees of freedom for a test of independence is equal to the sample size minus one.

2. The test for independence uses tables of observed and expected data values.

3. The test to use when determining if the college or university a student chooses to attend is related to his or her socioeconomic status is a test for independence.

4. In a test of independence, the expected number is equal to the row total multiplied by the column total divided by the total surveyed.

Math   Statistics-And-Probability   
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Answer #1

1. The number of degrees of freedom for a test of independence is equal to the sample size minus one.
False.
The degrees of freedom for the independence test is calculated as follows
df = (r-1)(c-1)
where r is the number of rows and c is the number of columns.


2. The test for independence uses tables of observed and expected data values.
True

3. The test to use when determining if the college or university a student chooses to attend is related to his or her socioeconomic status is a test for independence.
True

4. In a test of independence, the expected number is equal to the row total multiplied by the column total divided by the total surveyed.
True

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