A random sample of 10 chocolate energy bars of a certain brand has, on average, 280 calories per bar, with a standard deviation of 15 calories. Construct a 90% confidence interval for the true mean calorie content of this brand of energy bar. Assume that the distribution of the calorie content is approximately normal. Click here to view page 1 of the standard normal distribution table.

Q: What percentage of fire station response times are under 3 minutes

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A: Solution

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A:

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A:

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A: The detailed solution is as follows below:

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