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A random sample of 10 chocolate energy bars of a certain brand has, on average, 220...

A random sample of 10 chocolate energy bars of a certain brand has, on average, 220 calories per bar, with a standard deviation of 25 calories. Construct a 95% confidence interval for the true mean calo- rie content of this brand of energy bar. Assume that the distribution of the calorie content is approximately normal.

(a) (202.12, 237.88)

(b) (200.09, 240.91)

(c) (210.72, 232.16)

(d) (208.67, 235.01)

Math   Statistics-And-Probability   
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