The average weekly hours worked by service employees in the leisure and hospitality industry during a recent
Question:
The average weekly hours worked by service employees in the leisure and hospitality industry during a recent period of 31 months are listed.
Use a 98% level of confidence.
assume the sample is from a normally distributed population and construct the indicated confidence intervals for
(a) the population variance σ2 and
(b) the population standard deviation σ. Interpret the results.
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