Final exams are normal distribution

Reference no: EM13104997

"In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.

1) the top 10% receive A

2) the next 20% receive B

3) the middle 40%receive C

4) the next 20% receive D

5) the bottom 10% receive F.

Find the lowest score on the final exam that would qualify a student for an (A, B, C, D)

Reference no: EM13104997

Questions Cloud

Perform market survey on behalf of leading newspaper : Ascertain reader habits and interests. What kind of research report would be most suitable? Create the outline of the research report with main sections?

Confidence interval and sample size calculation problems : By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.22 seconds.

Describe important objectives for mne : Can you give an example of successfully using one of the common international compensation approaches - Balance Sheet, Negotiation, Localization, Lump Sum, or Cafeteria?

Maximum error of estimate and confidence level : A confidence interval estimate for the population mean is given to be (41.16, 49.85). If the standard deviation is 16.290 and the sample size is 54, answer each of the following (show all work):

Final exams are normal distribution : In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.

Long run demand elasticity for almonds : What share will be paid by the consumer in the long run? How about the short run? Provide some intuition for why these are different.

Finding the confidence interval for poll or survey results : Quality Progress, Feburary 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the "voice of the customer".

Estimate the economic production quantity : Race One Motors is an Indonesian car manufacturer. At its largest manufacturing facility, in Jakarta, the company produces subcomponents at a rate of 300 per day.

What are the biggest threats to monopolistic profits : Does it appear that widgets would be a luxury good or necessity IF they sol at the perfectly competitive equilibrium (which they don't), and why?

User Account

All Pages