Author Question: Bayes' Rule is a formula for revising an initial subjective (prior) probability value on the basis ... (Read 102 times)

jhjkgdfhk · **on:** Jul 24, 2018

Bayes' Rule is a formula for revising an initial subjective (prior) probability value on the basis of results obtained by an empirical investigation and for, thus, obtaining a new (posterior) probability value.
Indicate whether the statement is true or false

Question 2

Which of the following statements about contingency tables is correct?
a. In the test of independence, one set of marginal totals (either row totals or column totals) is known before the data are collected.
b. In the test for homogeneity, the null hypothesis says, The distribution of proportions is the same in all subpopulations..
c. In the test of independence, the number of degrees of freedom is r + c 1.
d. In the test for homogeneity, the number of degrees of freedom is rc 1, where r is the number of rows and c is the number of columns in the contingency table.