nnect IMATH Hosted by ALEKS Corp. 7.2 Homework Previous 2 3 4 5 6 Next Question

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nnect IMATH Hosted by ALEKS Corp. 7.2 Homework Previous 2 3 4 5 6 Next Question 3 of 6 (1 point) View problem in a pop-up 7.2 Section Exercise 12 (calc) A meteorologist who sampled 16 thunderstorms found that the average speed at which they traveled across a certain state was 14 miles per hour. The standard deviation of the sample was 1.3 miles per hour. Use a graphing calculator and round the final answer to one decimal place. Part 1 Find the 92% confidence interval of the mean. Assume the variable is normally distributed. 13.30743 14.69258 Part 2 out of 2 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 she likely use? The meteorologist should use miles per hour for the prediction. NEXT

Explanation / Answer

Ans:

Lower limit of CI=13.30743

Upper limit of CI=14.69258

so,maximum speed at 92% confidence level can be 14.69258

So,metrologist should choose 14.69258 miles per hr

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