Each month the US Department of Agriculture produces the Retail Milk Prices Report. The report lists the
Question:
Each month the US Department of Agriculture produces the Retail Milk Prices Report. The report lists the retail prices of milk for selected cities. The December 2019 prices (dollars per gallon) for conventional whole milk for 10 US cities are listed in the accompanying table. A dairy farmer is interested in knowing true mean December 2019 retail whole milk price for all US cities.
a. Identify the dairy farmer’s target parameter.
b. Compute a point estimate of the target parameter.
c. What is the problem with using the normal (z) statistic to find a confidence interval for the target parameter?
d. Find a 95% confidence interval for the target parameter.
e. Give a practical interpretation of the interval, part d.
f. What conditions must be satisfied for the interval, part d, to be valid?
US City Atlanta, GA Boston, MA Cincinnati, OH Dallas, TX Detroit, MI Miami, FL New Orleans, LA Pittsburgh, PA Syracuse, NY Washington, DC Price ($/gallon) 3.72 3.32 3.09 2.59 2.72 4.02 3.95 4.34 3.45 3.82
Step by Step Answer:
a The dairy farmers target parameter is true mean December 2019 retail whol...View the full answer
Statistics For Business And Economics
ISBN: 9780136855354
14th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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