The most important descriptive statistical procedure appropriate ...

[rosent76]

The most important descriptive statistical procedure appropriate for use with two interval variables is the
 a. z-test c. simple linear regression
  b. t-test d. chi-square test

Question 2

A significance level is a critical probability associated with a statistical hypothesis test that indicates how likely it is that an inference supporting a difference between an observed value and some statistical expectation is true.
 
 Indicate whether the statement is true or false

[mrphibs]

Answer to Question 1

C
Simple linear regression is the most important descriptive statistical procedure when comparing two interval variables within a sample data set. The chi-square, z- and t-tests are inferential statistical tests.

Answer to Question 2

T