A study reports that 75 percent of young adults in a county get their news from online sources. A sociologist believes that the
percentage is actually greater than 75 percent. The sociologist will select a random sample of young adults from around the county to interview. Which of the following is the most appropriate method for investigating the sociologist’s belief? A. A one-sample zz-test for a difference in population proportions
B. A one-sample zz-test for a sample proportion
C. A one-sample zz-test for a population proportion
D. A two-sample zz-test for a difference in population proportions
E. A two-sample zz-test for a difference in sample proportions
The following is the most appropriate method for investigating the sociologist’s belief is,
A. A one-sample zz-test for a difference in population proportions
Step-by-step explanation:
The young adults in a county get their news from online sources are 75 percent.
But according to sociologist the percentage is actually greater than 75 percent.
The correct answer is A one-sample zz-test for a difference in population proportions.
The One proportion Z-test is used to compare proportion which is observed to a theoretical one, only when there are only two categories.
A z-test is a statistical test which is used to determine whether there are two population which means there are different when the variances are known and the sample size is relatively large.
