9. If a random variable has an F distribution with 12degrees of freedom in the n
ID: 3292293 • Letter: 9
Question
9. If a random variable has an F distribution with 12degrees of freedom in the numerator and 7 degrees of freedom in the denominator, what value of the random variable is exceeded with probability equal to .05? __________________
10. When testing whether one population proportion was significantly greater than another, the p-value equaled .03. If the test was being carried out at a level of significance = .05, the null hypothesis would be ___________________.
12. Comparing proportions from two independent samples involves a ________ test.
13. Samples where two measurements are taken on a before and after basis for the same individuals are called ____________ samples.
Explanation / Answer
9. If a random variable has an F distribution with 12degrees of freedom in the numerator and 7 degrees of freedom in the denominator, what value of the random variable is exceeded with probability equal to .05?
Answer=3.574676447 using excel function=FINV(0.05,12,7)
__________________
10. When testing whether one population proportion was significantly greater than another, the p-value equaled .03. If the test was being carried out at a level of significance = .05, the null hypothesis would be
Answer=Rejected___________________.
12. Comparing proportions from two independent samples involves a ________ test.
Answer: Two sample z-test of proportions
13. Samples where two measurements are taken on a before and after basis for the same individuals are called ____________ samples.
Answer paired or repeated samples
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