A random sample of 10 chocolate energy bars of a certain brand has, on average, 225 calories per bar, with a standard deviation of 25 calories. Construct a 99% confidence interval for the true mean...

Extracted text: A random sample of 10 chocolate energy bars of a certain brand has, on average, 225 calories per bar, with a standard deviation of 25 calories. Construct a 99% confidence interval for the true mean calories content of this energy bar. Assume that the distribution of the calorie content is approximately normal.