Calculating probabilities for normally distributed data
Not what you're looking for?
plastic bags used for packing are manufactured so that the breaking strength
of the bag is distributed by N(5pounds, 2.2 pounds), if a sample of 25 bags is selected.
1. what is the chance that the sample mean of breaking 3 pound strength is larger than 5.3 pounds
2. what is the chance that the breaking strength is larger than 6.0 pounds.
3. between what two values symmetrically distributed around the mean will 95% of the sample mean of breaking strength fall?
4. between what two values symmetrically distributed around the mean will 95% of the breaking strength fall?
5. what is the sample size for finding a population if confidence is 99% and the sampling error is +/- 0.04
Purchase this Solution
Solution Summary
The solution gives detailed steps on calculating probabilities for normally distributed data. All the formula and calcuations are shown and explained.
Solution Preview
1. what is the chance that the sample mean of breakin3 pound strength is larger than 5.3 pounds
2. what is the chance that the ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.