An auto manufacturer wants to estimate the annual income of owners of a particular model of automobile. A random sample of 200 current owners is taken. The population standard deviation is known. Which Excel function would not be appropriate to use to construct a confidence interval estimate?
A) NORM.S.INV
B) COUNTIF
C) AVERAGE
D) STDEV.S
Correct Answer:
Verified
Q20: In determining an interval estimate of
Q21: From a population that is not
Q23: A random sample of 36 students at
Q24: It is known that the variance of
Q24: A 95% confidence interval for a
Q26: In general, higher confidence levels provide
A) wider
Q26: As the number of degrees of freedom
Q28: When the level of confidence increases, the
Q30: From a population that is normally
Q37: The t value with a 95% confidence
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