Thunderstorm SpeedsA meteorologist who sampled

10

thunderstorms found that the average speed at which they traveled across a certain state was12

miles per hour. The standard deviation of the sample was3.4

miles per hour. Round the final answers to at least two decimal places.

Part:0 / 2

0 of 2 Parts Complete

Part 1 of 2

Find the

80

%

confidence interval of the mean. Assume the variable is normally distributed.

Thunderstorm Speeds A meteorologist who sampled 10 thunderstorms found that the average speed at which they traveled across a certain state was 12 miles per hour. The standard deviation of the sample was 3.4 miles per hour. Round the final answers to at least two decimal places. Part: 0 / 2 Part 1 of 2 Find the 80% confidence interval of the mean. Assume the variable is normally distributed.