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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The personnel department of a large corporation employing 3,000 workers wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of 10 employees reveals the following family dental expenses (in dollars) for the preceding year (see the dental.xls file):
110 Â Â Â Â Â Â 362 Â Â Â Â Â Â 246 Â Â Â Â Â Â 85 Â Â Â Â Â Â Â Â Â 510 Â Â Â Â Â Â 208 Â Â Â Â Â Â 173 Â Â Â Â Â Â 425 Â Â Â Â Â Â 316 Â Â Â Â Â Â 179
Construct a 90% confidence interval estimate of the total family dental expenses for all employees in the preceding year.
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