Suppose that the weights of 3500 registered female Great Danes in the United States are distributed normally with a mean of 125 lb. and a standard deviation of 5.2 lb. Approximately how many of the Great Danes weigh more than 130.2 lbs.?

Beginning of the Unit:

Print off this document and complete each homework problem. You must show all steps using methods learned in this course. Problems with no work or using methods not taught in the course, will be given a grade of zero. Each problem is worth 3 points and will be graded.

Make sure to complete the corresponding lesson before attempting the problem. This document is due on the last day of the unit. Combine all pages into a single non-zipped document.

Lesson: 5.02

Suppose that the weights of 3500 registered female Great Danes in the United States are distributed normally with a mean of 125 lb. and a standard deviation of 5.2 lb.
Approximately how many of the Great Danes weigh more than 130.2 lbs.?

Lesson: 5.03

Body mass index, or BMI, of 18-year-old females are normally distributed with a mean of 24.6 and a standard deviation of 2.4. Eighteen-year-old Sasha BMI has a s-score of 1.22.

What is Sasha’s BMI?

Lesson: 5.04

An experiment compares weight of fish for two different brands fish food.

Nacho Average Minos fish food has a mean fish weight 12 lbs., and a standard deviation of 1.4 lbs. Impossible Minos fish food has a mean fish weight of 14 lbs. and a standard deviation of 1.2 lb. A fish is measured to be 13.1 lbs.

Which brand of fish food, Nacho Average Minos, or Impossible Minos, is more likely to have been used to feed this fish?

 

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