Suppose the 95% two tailed confidence interval for the mean grade on the statist

Question

Suppose the 95% two tailed confidence interval for the mean grade on the statistics final (shown on right) for n students (on right) at a business college is given on the right. What was the value of the sample mean? UCL = 95 LCL = 75 n = 64 a. 85.00 b. 95.00 c. 10.63 d. 75.00 e. none Suppose the 95% two tailed confidence interval for the mean grade on the statistics final (shown on right) for n students (on right) at a business college is given on the right. What was the value of the sample mean? UCL = 95 LCL = 75 n = 64 a. 85.00 b. 95.00 c. 10.63 d. 75.00 e. none

Explanation / Answer

Sample mean always lies in the middle of the interval. Hence,

Sample mean = (75 + 95)/2 = 85

Option A is correct.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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