Explanations & calculations required

Q1

Of the following, which one is similar to the chi-square test but only for paired data?

a. Wilcoxon signed rank test

b. McNemar's test

c. Mantel-Haenszel test

d. Simpson's paradox

Q2

The Fisher's exact test is:

a. More rigorous and more accurate than the chi-square test.

b. Not recommended for use in statistics.

c. Only used in multiple regression.

Q3

Given the following table:

Risk

Yes No

Disease8030

No disease2015

What is the odds ratio for disease relating those with the risk factor to those without the risk factor? __:1

Q4

You have two sample groups. In group one, there are nine successes out of 60. In group two, there are 13 successes out of 50. Calculate:

p-hat-1 =

p-hat-2 =

p-hat (weighted average) =