Question

True/False Mark each of the following with a (+) for true and a (-) for false.

____1. The paired t-test has no underlying distribution assumptions.

____2. The chi-square statistic is always greater than or equal to zero.

____3. If the population is normal, we would still prefer a nonparametric test.

____4. The following 2X2 table would have a chi-square test statistic of zero:

____5. A criticism of the sign test is that magnitudes have no importance.

____6. The sign test is a binomially based test.

____7. Ties are discarded when doing the paired-t test.

____8. As is the case with the Normal probability distribution, the Chi-Square distribution is symmetrical.

____9. The chi-squared test of independence assumes the data is dependent to determine

the expected frequencies.

____10. The degrees of freedom for a 4 x 5 contingency table would be 20.

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Answer #1

True/False Mark each of the following with a (+) for true and a (-) for false

1) The paired t-test has no underlying distribution assumptions. :

false ie (-)

2) The chi-square statistic is always greater than or equal to zero. :

true ie (+)

3) If the population is normal, we would still prefer a nonparametric test.

false ie (-)

4) The following 2X2 table would have a chi-square test statistic of zero

false (-)

5 ) A criticism of the sign test is that magnitudes have no importance.

false (-)

6) The sign test is a binomially based test.

true (+) :

The sign test is a special case of the binomial test where the probability of success under the null hypothesis is p = 0.5

7) Ties are discarded when doing the paired-t test.

false (-)

8) As is the case with the Normal probability distribution, the Chi-Square distribution is symmetrical.

false (-)

9)

The chi-squared test of independence assumes the data is dependent to determine

the expected frequencies.

True (+)

10 ) The degrees of freedom for a 4 x 5 contingency table would be 20.

false (-)

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