Hourly Fees A random sample of 15 hourly fees for car washers (including tips)was drawn from a normal population. The sample mean and sample standard deviation were = $14.9 and s = $6.75. {Hourly Fees Narrative} Can we infer at the 5% significance level that the mean fee for car washers (including tips)is greater than 12?

Question

Hourly Fees A random sample of 15 hourly fees for car washers (including tips)was drawn from a normal population. The sample mean and sample standard deviation were  = $14.9 and s = $6.75. {Hourly Fees Narrative} Can we infer at the 5% significance level that the mean fee for car washers (including tips)is greater than 12?

Quizplus · Accepted Answer

The Answer of Hourly Fees A random sample of 15 hourly fees for car washers (including tips)was drawn from a normal population. The sample mean and sample standard deviation were  = $14.9 and s = $6.75. {Hourly Fees Narrative} Can we infer at the 5% significance level that the mean fee for car washers (including tips)is greater than 12?

Hourly Fees a Random Sample of 15 Hourly Fees for Car