Essay
Interest Rates Narrative
The following 10 observations are interest rates on unpaid balances on credit cards for a department store: 10.4, 10.1, 9.5, 10.5, 10.6, 9.3, 9.9, 10.7, 9.5, and 10.0.
-Here are the red blood cell counts (in cells per microlitre) of a healthy person measured on each of 15 days: 5.6, 5.4, 5.2, 5.4, 5.7, 5.5, 5.6, 5.4, 5.3, 5.5, 5.5, 5.1, 5.6, 5.4, and 5.4. Find a 95% confidence interval estimate of the true mean red blood cell count for this person during the period of testing.
Correct Answer:

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= 5.44, and
= 0.02543, hence s = 0.159...View Answer
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