SOLUTION: Can someone please help me with answering the following question? As part of an advertising campaign, the Dairy Council is interested in determining the daily intake of milk amo

Question 266354: Can someone please help me with answering the following question?
As part of an advertising campaign, the Dairy Council is interested in determining the daily intake of milk among adults. A random sample of 10 adults gave the following results. (Values are given in ounces.)
23.0 30.6 20.3 10.1 11.5
21.8 22.2 26.9 21.0 30.1
a. Find x-bar and s for this data set.
b. Construct a 99 percent confidence interval for the mean daily intake of milk. You may assume the daily intake amounts are normally distributed. (Note: These results could then be used in later studies to see if the ad campaign is succeeding in increasing the amount of milk adults drink.)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
As part of an advertising campaign, the Dairy Council is interested in determining the daily intake of milk among adults. A random sample of 10 adults gave the following results. (Values are given in ounces.)
23.0 30.6 20.3 10.1 11.5
21.8 22.2 26.9 21.0 30.1
a. Find x-bar and s for this data set.
xbar = 21.75 ; s = 6.8295
E = invT(0.995,9)*6.8295/sqrt(10) = 7.0186
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b. Construct a 99 percent confidence interval for the mean daily intake of milk. You may assume the daily intake amounts are normally distributed.
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99% CI: 21.75-7.0186 < u < 21.75+7.0186
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Cheers,
Stan H.
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