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i safari File Edit View History Bookmarks Window Help 55% CO Wed 4:28 PM a What Are The Correct Answers?? Thank You!! Chapter 9 6 Saved Help Save & Exit Submit 41 PM Check my work 3 The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 17 people reveals the mean yearly consumption to be 66 gallons with a standard deviation of 26 gallons. Assume the population distribution is normal. (Use tDistribution Table.) een Shot 12..17.44 PM points a-1. What is the value of the population mean? een Shot 12...20.32 PM eBook OUnknown O 66 026 Hint Print een Shot 12...0.38 PM a-2. What is the best estimate of this value? cen Shot 2...22.25 PM een Shot 2...22.27 PM C. For a 90% confidence interval, what is the value of t? (Round your answer to 3 decimal places.) een Shot 12...4.44 PM Prev 3015 Next > 6

Explanation / Answer

The statistical software output for this problem is:

One sample T summary confidence interval:
: Mean of population

90% confidence interval results:

Hence,

a - 1) Population mean: Unknown

a - 2) Best point estimate = Sample mean = 66

b) Degrees of freedom = n - 1 = 17 - 1 = 16

Hence,

t value = 1.746

c) 90% confidence interval: (54.991, 77.009)

d) No since 50 is not the part of the interval.

Mean Sample Mean Std. Err. DF L. Limit U. Limit 66 6.3059263 16 54.990586 77.009414

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