1. A marketing specialist at a radio station wants to show that more people hear
ID: 3183058 • Letter: 1
Question
1. A marketing specialist at a radio station wants to show that more people hear about local businesses on the air than from billboards or direct mailings. She creates three different versions of the same ads—radio spot, billboard, and direct mailing—in three different towns that are not near each other (to avoid violating statistical assumptions). At the end of a month, she chooses 50 random phone numbers from each town and asks the participants to rate how familiar the car dealership is. What is the appropriate statistical test for this research design?
A) paired-samples t test
B) between-subjects, one-way analysis of variance
C) independent-samples t test
D) single-sample z test
2. Adam is interested in studying the effects of stress on blood pressure. If he assesses the blood pressure of 50 females before, during, and after giving a stressful speech, what would his null hypothesis be?
A) that at least two of the means would be the same
B) that the means during each period would be different
C) that at least two of the means would be different
D) that the means during each period would be the same
Explanation / Answer
Ans:
(1) B) between-subjects, one-way analysis of variance
(2) D) that the means during each period would be the same
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.