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# Dental Plan as part of the Benefits Package; one family Per yer, Sample of 45

The Human Relations Department of Electronics, Inc., would like to include a dental plan as part of the benefits package. The question is: How much does a typical employee and his or her family spend per year on dental expenses? A sample of 45 employees reveals the mean amount spent last year was \$1,820, with a standard deviation of \$660.

1. Construct a 95 percent confidence interval for the population mean.
2. The information from part (a) was given to the president of Electronics, Inc. He indicated he could afford \$1,700 of dental expenses per employee. Is it possible that the population mean could be \$1,700?

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The Human Relations Department of Electronics, Inc., would like to include a dental plan as part of the benefits package. The question is: How much does a typical employee and his or her family spend per year on dental expenses? A sample of 45 employees reveals the mean amount spent ...

#### Solution Summary

The Human Relations Department of Electronics, Inc., would like to include a dental plan as part of the benefits package. The question is: How much does a typical employee and his or her family spend per year on dental expenses? A sample of 45 employees reveals the mean amount spent last year was \$1,820, with a standard deviation of \$660.

\$2.19