The weekly incomes of To ezto.mheducation.com/hm.tpx if the The U.S Dairy Indust
ID: 3324219 • Letter: T
Question
The weekly incomes of To ezto.mheducation.com/hm.tpx if the The U.S Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 14 people reveals the mean yearly consumption to be 60 gallons with a standard deviation of 20 galions Assume that the population distribution is normal. (Use t Distribution Table) a-1. What is the value of the population mean? O 20 Unknown a-2. What is the best estimate of this value? Estimate population mean C. For a 95% confidence interval, what is the value of t? (Round your answer to 3 decimal places.) Value oft Develop the 95% confidence interval for the population mean.(Round your answers to 3 decimal places.] d, Confidence interval for the population mean is e. Would t be reasonable to conclude that the population mean is 52 gallons? te not possible to 49 5 6 3 4 2Explanation / Answer
Solution:-
a-1 . option C. unknown
a-2 Estimate the population mean = 60
c. Value of t = 2.160
=>df = 14-1 = 13 t(0.025 , 13) = 2.160
d. confidence interval for the population mean is 48.454 and 71.546
=> X +/- t*s/sqrt(n)
= 60 +/- 2.160 *20/sqrt(14)
= (48.454 , 71.546)
e. option B .Yes
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