Q162
A sample of 144 items gives a mean value of 45, with a standard deviation of 3. Calculate symmetric confidence limits within which the true population lies with 95% confidence?
A.
41.5 and 42.5
B.
42.5 and 43.5
C.
43.0 and 43.5
D.
44.5 and 45.5
AnswerAnswer: Option D
Solution
Answer: Option D
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