Question: A meteorologist who sampled 8 thunderstorms found that the average speed at which they traveled across a certain state was 15 miles per hour. The

A meteorologist who sampled 8 thunderstorms found that the average speed at which they traveled across a certain state was 15 miles per hour. The standard deviation of the sample was 3 miles per hour. Round the final answers to at least two decimal places. Find the 80% confidence interval of the mean. Assume the variable is normally distributed. If a meteorologist wanted to use the highest speed to predict the times it would take storms to travel across the state in order to issue warnings, what figure would meteorologist likely use?

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