If we wish to determine whether there is evidence that the proportion of successes is higher in group 1 than in group 2, the appropriate test to use is the:

A) z test
B) test
C) t-test with 2 degrees of freedom
D) F-test with 2 degrees of freedom
E) all of these

Question

Maidul Ahsan · Accepted Answer

Final Answer : A, Explanation :  The appropriate test for comparing the proportions of two independent groups is the z-test. The z-test is used when the sample size is large enough that we can assume a normal distribution for the sampling distribution of the proportion.

If we wish to determine whether there is evidence that the proportion of successes is higher in group 1 than in group 2, the appropriate test to use is the:

A) z test
B) test
C) t-test with 2 degrees of freedom
D) F-test with 2 degrees of freedom
E) all of these

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Learning Objectives

Related questions

If we wish to determine whether there is evidence that the proportion of successes is higher in group 1 than in group 2, the appropriate test to use is the:A) z testB) testC) t-test with 2 degrees of freedomD) F-test with 2 degrees of freedomE) all of these

Definitions

Learning Objectives

Learning Objectives

Related questions

If we wish to determine whether there is evidence that the proportion of successes is higher in group 1 than in group 2, the appropriate test to use is the:

A) z test
B) test
C) t-test with 2 degrees of freedom
D) F-test with 2 degrees of freedom
E) all of these