Problem: Give at least 5 characteristics of the Bell Curve

Problem: For a normally distributed population, mean of 6.5 and standard deviation of 4, compute:

• The probability of picking one item from the population and having it fall between 6.5 and 14.5
• The probability of picking one item and having it fall above 14.34
• The point, if the probability of picking an item from the population and having it fall above the point is 2.5%
• Two points, equidistant from the mean, one to the left of the mean and one to the right

Problem: A sample of 300 is taken and the sample mean is computed to be 7.65 and the sample standard deviation is 5. Assume the data is ratio level.

Compute the 95% confidence interval on the mean.

Compute the 3.9% confidence interval on the mean

Which confidence interval is more practical and useful in a business situation? Why?

Price: $6.76

Solution: The downloadable solution consists of 3 pages, 376 words and 9 charts.
Deliverable: Word Document