A company wants to determine whether its consumer product ratings (0- 10) have c

Question

A company wants to determine whether its consumer product ratings (0- 10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At = 0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f) 2 3 45678 Rating (last year) 6 7 54 6 97 7 4 nsumer Rating (this year 4 5 6 6 (a) Identify the claim and state Ho and Ha The claim is "The product ratings have changed from last year to this year." Let d be the hypothesized mean of the ratings last year minus the ratings this year. State Ho and Ha. Choose the correct answer below. (b) Find the critical value(s) and identify the rejection region(s) (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.)

Explanation / Answer

Solution:-  

rejection region

=> option B. t < -2.365

=>df = n1+n2-2 = 16 - 2 = 14,
significance level = 0.05

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.