The Badik Construction Company limits its business to constructing decks. The mean time to construct one of
Question:
The Badik Construction Company limits its business to constructing decks. The mean time to construct one of its standard decks is 8 hours for a two-person construction crew. The information is based on a sample of 40 decks recently constructed. The standard deviation of the sample was 3 hours.
a. Determine a 90% confidence interval for the population mean.
b. Would it be reasonable to conclude that the population mean is actually 9 hours? Justify your answer
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Basic Statistics For Business & Economics
ISBN: 9781259268939
6th Canadian Edition
Authors: Douglas A. Lind, William G Marchal, Samuel A. Wathen, Carol Ann Waite
Question Posted: