TURE or FALSE 1. The chi-square distribution with 7 degrees of freedom the mode
ID: 3160455 • Letter: T
Question
TURE or FALSE
1. The chi-square distribution with 7 degrees of freedom the mode of the distribution occurs over n = 7.
2. A chi-square test for independence is used to test whether or not different populations share the same proportions of specified characteristics.
3. A p-value is the probability of obtaining a sample statistic less extreme than the one observed under the assumption that the statement in the null hypothesis is true.
4. For a hypothesis test of proportion we use the t-distribution
Explanation / Answer
1. The chi-square distribution with 7 degrees of freedom the mode of the distribution occurs over n = 7. FALSE.
n=7+1=8
2. A chi-square test for independence is used to test whether or not different populations share the same proportions of specified characteristics. False.
The Chi-Square test of Independence is used to determine if there is a significant relationship between two nominal (categorical) variables.
3.A p-value is the probability of obtaining a sample statistic less extreme than the one observed under the assumption that the statement in the null hypothesis is true. True.
4.For a hypothesis test of proportion we use the t-distribution. FAlse.
Use a z test.
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