Multiple Choice
A random sample of 25 statistics examinations was selected. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is _____.
A) 70.02 to 81.98
B) 69.82 to 82.18
C) 70.06 to 81.94
D) 69.29 to 82.71
Correct Answer:
Verified
Correct Answer:
Verified
Q7: For the interval estimation of μ when
Q31: Using α = .04, a confidence interval
Q36: From a population that is not normally
Q59: We can reduce the margin of error
Q60: A random sample of 36 students at
Q60: A random sample of 36 students at
Q82: It is known that the variance of
Q84: A bank manager wishes to estimate the
Q93: The general form of an interval estimate
Q95: An auto manufacturer wants to estimate the