How much fat do reduced-fat cookies typically have? You take a random sample of 51 reduced-fat cookies and test them in a lab,constructing the following confidence interval: t-Interval for μ: with 90.00% Confidence,
2.3

Question

How much fat do reduced-fat cookies typically have? You take a random sample of 51 reduced-fat cookies and test them in a lab,constructing the following confidence interval: t-Interval for μ: with 90.00% Confidence,
2.3 < μ(grams of fat)< 3.4

Quizplus · Accepted Answer

The confidence interval is 2.3 < μ(grams of fat)< 3.4. The midpoint of the confidence interval is (2.3 + 3.4) / 2 = 2.85. The margin of error is (3.4 - 2.3) / 2 = 0.55. Therefore, the typical amount of fat in reduced-fat cookies is 2.85 grams, with a margin of error of 0.55 grams.

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