25.4k views
0 votes
Suppose that, based on a sample, the 68% confidence interval for the mean of a population is (63,75). What was the mean of the sample?

A) 73
B) 77
C) 81
D) 69

User Lcarsos
by
7.9k points

2 Answers

1 vote

Answer:

can u guys just tell me what was wrong with my answer??????

the answer is d which is 69

Explanation:

User Flygoast
by
8.2k points
4 votes
The answer is D.

Using the formula of Mean, x¯=
(∑x)/(N)
∑ is the summation
x is the score
N is the number of scores

Therefore, Mean = ∑(63+75) / 2
Mean = 138 / 2
Mean = 69
User Laughingpine
by
8.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories