From her firm's computer telephone log, an executive found that the mean length of 64 telephone calls
Question:
(a) State the hypotheses for a right-tailed test.
(b) Obtain a test statistic and p-value assuming unequal variances. Interpret these results using α = .01.
(c) Why might the sample data not resemble a normal, bell-shaped curve? If not, how might this affect your conclusions?
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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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