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
Mathematics
yokelsimichele
Question
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
A) 73
B) 77
C) 81
D) 69
2 Answer

1. User Answers BlueSky06
The answer is D.
Using the formula of Mean, x¯= [tex] \frac{∑x}{N} [/tex]
∑ is the summation
x is the score
N is the number of scores
Therefore, Mean = ∑(63+75) / 2
Mean = 138 / 2
Mean = 69 
2. User Answers Anonym
Answer:
can u guys just tell me what was wrong with my answer??????
the answer is d which is 69
Stepbystep explanation: