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A random sample of 22 brand-name chocolate energy bars has, on average, 230 calories per bar....

A random sample of 22 brand-name chocolate energy bars has, on average, 230 calories per bar. The standard deviation of the calorie content of this brand of energy bars is 17 calories. Calculate the margin of error for a 98% confidence interval for the true average calorie content of this brand of chocolate energy bars. Suppose the distribution of caloric content is approximately normal.

Important note: Use the critical value rounded to 3 decimal places and your answer to 2 decimal places.

Answer with using 4 decimals.

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Answer #1

Solution Given that x = 230 S = n 22 C = 98% 0.98 At 98% confidence interval t is x = 1-c - 1-0.98 -0.02 a 0.02 0.01 2 2 d.f.

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