Essay
A random sample of 10 waiters in Weston,West Virginia,revealed the following hourly earnings,including tips: 19,18,15,16,18,17,16,18,20,and 14.(Units are dollars.)
a.If the hourly earnings are normally distributed with a standard deviation of $4.50,estimate with 95% confidence the mean hourly earnings for all waitresses in Iowa City.
b.Interpret your confidence interval.
Correct Answer:
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a. LCL = $14.31 and UCL = $19.89.
b. Ba...View Answer
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Correct Answer:
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b. Ba...
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