True or False: A statistics professor wanted to test whether the grades on a sta

Question

True or False: A statistics professor wanted to test whether the grades on a statistics test were the same for upper and lower classmen. The professor took a random sample size of 10 from each, conducted a test and found out that the variances were equal. For this situation, the professor should use a t test with independent samples. In testing for differences between the means of two related populations, the null hypothesis is A)H_0: mu D-2. B) H_0 : mu = 0. C) C_0 : muD 0. In a one-way ANOVA, if the computed F statistic is greater than the critical F value you may A) reject H_0 since there is evidence all the means differ. B) reject H_0 since there is evidence that not all the means are different. C) not reject H_0 since there is no evidence of a difference in the means. D) not reject Hq because a mistake has been made.

Explanation / Answer

28. True. here we have to use t-test for indpendent of samples with pooled variance

29. correct Answer: option (B)

30. Correct Answer: option (A)

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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