Use the following scenario for questions 8a – 8e Fuel economy estimates for automobiles built one year predicted a mean of 23.8 mpg and a standard deviation of 7.2 mpg for highway driving. Assume that a Normal model/distribution can be applied. Use the 68-95-99.7 Rule to complete the questions below.

__________% of steers have weights below 1300 pounds.

Upload Page 3 of any work here (optional) Take a picture of your handwritten work. Embed your picture by uploading the image from your phone to the computer (like email it to yourself or use Google drive) Click the “images” drop-down in the toolbar above and “upload image” Click the ‘rocket’ and find your image on your computer and embed the image. Careful! HEIC files will not be accepted (iPhone users), they will be counted as a zero.

The cutoff weight for the highest 10% of steer weights is ______________ pounds.

The cutoff for the middle 40% of the steer weights are ___________ and ___________ pounds. Explain how you obtained your answer.

Upload Page 1 of any work here (optional) Take a picture of your handwritten work. Embed your picture by uploading the image from your phone to the computer (like email it to yourself or use Google drive) Click the “images” drop-down in the toolbar above and “upload image” Click the ‘rocket’ and find your image on your computer and embed the image. Careful! HEIC files will not be accepted (iPhone users), they will be counted as a zero.

In what interval would you expect the central 95% of autos to be found? Using the 68 – 95 – 99.7 rule, the central 95% of autos can be expected to be found in the interval from ________________ to _______________.      (lower bound)    to   (upper bound) 

__________% of steers have weights above 1050 pounds.

Draw a model for the auto fuel economy. Take a picture of your handwritten work. Embed your picture by uploading the image from your phone to the computer (like email it to yourself or use Google drive) Click the “images” drop-down in the toolbar above and “upload image” Click the ‘rocket’ and find your image on your computer and embed the image. Careful! HEIC files will not be accepted (iPhone users), they will be counted as a zero.

Use the following scenario for questions 11a – 11c Based on the model N(1154, 83) describing steer weights, what are the cutoff values for the following percentages?