value 15.00 points Exercise 9-12 (LO9-2) The U.S Dairy Industry wants to estimat
ID: 3324184 • Letter: V
Question
value 15.00 points Exercise 9-12 (LO9-2) The U.S Dairy Industry wants to estimate the mean yearly milk consumption A sample of 24 people reveals the mean yearly consumption to be 80 gallons with a standard deviation of 22 gallons Assume that the population distribution is normal. (Use LDistribution Table) a-1. What is the value of the population mean? 80 a-2. What is the best estimate of this value? Estimate population mean c. For a 99% confidence interval, what is the value of n (Round your answer to 3 decimal places) Value of t Round your answers to] decimal Develop the 99% confidence interval for the population mean places.) d Contidence nterval for the population mean is e. Would it be reasonable to conclude that the population mean is 69 gallons? a No C) It is not possible to tell YesExplanation / Answer
Solution:-
a-1:- option C. unkown.
a-2:- Estimate population mean 80
c . Value of t = 2.807
=> t(0.005,23) = 2.807
d. Confidence interval for the population mean is 67.395 and 92.605
=> X +/- t * s/sqrt(n)
= 80 +/- 2.807 * 22/sqr(24)
= (67.395 , 92.605)
e . option C. yes
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