Question
A bank manager wishes to estimate the average waiting time for customers in line for tellers. A random sample of 50 times is measured and
A bank manager wishes to estimate the average waiting time for customers in line for tellers. A random sample of 50 times is measured and the average waiting time is 5.7 minutes. The sample standard deviation of waiting time is 2 minutes. Which Excel function would be used to find the margin of error to construct a confidence interval estimate?
Group of answer choices
CONFIDENCE.T
INT
NORM.INV
MARGIN.ERROR
T.INV
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Trigonometry A Unit Circle Approach (Subscription)
Authors: Michael Sullivan
9th Edition
032183075X, 9780321830753
