This stion: 10 pts This Test: 113 pts poss ed to rage is related to his or her i

Question

This stion: 10 pts This Test: 113 pts poss ed to rage is related to his or her income. The mean road rage scores of drivers in three inoome groups were labeled A, B, and C. Use the partial ANOVA summary table given below to complete parts a through c below. Road 21.36 0.001 Rage Score2 75 Total Identify the null and alternate hypotheses for the test given in the ANOVA results. Reject the null hypothesis. There is sufficent evidence to conclude that at least two of the means are significanty diferent from each other b. A multiple comparisons of means procedure was applied to the data using an experimentwise error rate of 0.01.Explain what the 0.01 means. Choose the correc answer below. O A. The probability of claiming at least 2 means are different when they are not is 0.01. O B. The probability of claiming at least 2 means are not different when they are is 0.01 O C. The probability of claiming at least 2 means are different when they are not is 0.99 O D. The probability of claiming at least 2 means are not different when they are is 0.99 ur an

Explanation / Answer

The correct answer is A " The probability of claiming at least 2 means are different when they are not is 0.01"

Because when we test the differences of two means at 1% level of significance then the chances of making type I error is fixed and it is 0.01(1%) so if we reject null hypothesis then we can conclude that there are at least 2 means different if they are not different the chance of making such error is only 0.01 (or 1%).

The correct answer of part 2 is B and C

Because The groups B and C are not significantly different , But the groups A, B and A,C are significantly different.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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