Which of the following are true statements about hypothesis tests to compare two

Question

Which of the following are true statements about hypothesis tests to compare two population means? Which of the folloving are true statements about hypothesis tests to compare tvwo popudáati OA Do is the amount by which the population means are hypothesized to differ. Although this amount if often 0 (if the means are hypothesized to be equal), it does not have to be zero The z-distribution is used to obtain the critical value for the rejection region and decision least 30) OB. rule whenever at least one of the sample sizes is sufficiently large (either n or n2 is at Both A and B. OD. Neither A or B

Explanation / Answer

1) Both A and B

if n1 and n2 is large we use Z test

2)

H0 : mean sales price of GIA is equal to mean sales of HRD

H1: Mean sales price of GIA is less than to mean sales of HRD

alpha:5%

Test statistic:

Z=-4.45

COnclusion:

Z critical value= -1.645

Since Z cal > Z critical value we reject the null hypothesis. Hence
Mean salees price of GIA is less than to mean sales of HRD

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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