Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

In the last mayoral election in a large city, 47% of the adults over the age of

ID: 3219973 • Letter: I

Question

In the last mayoral election in a large city, 47% of the adults over the age of 65 voted Republican. A researcher wishes to determine if the proportion of adults over the age of 65 in the city who plan to vote Republican in the next mayoral election has changed. Let p represent the proportion of the population of all adults over the age of 65 in the city that plan to vote Republican in the next mayoral election. In terms of p, the researcher should test which of the following null and alternative hypotheses?

H0: p = 0.47 vs. Ha: p > 0.47 H0: p = 0.47 vs. Ha: p < 0.47 H0: p = 0.47 vs. Ha: p 0.47

Explanation / Answer

Claim: In the last mayoral election in a large city, 47% of the adults over the age of 65 voted Republican.

Null and alternative hypothesis

H0: p = 0.47 vs. Ha: p 0.47

Because a researcher wishes to determine if the proportion of adults over the age of 65 in the city who plan to vote Republican in the next mayoral election has changed.

Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
Chat Now And Get Quote