Problem regarding the consumer relations representative

Assignment Help Basic Statistics

Reference no: EM13995637

As a project for their high school mathematics class, four class members purchase packages of a leading breakfast cereal for subsequent weighing and comparison with the 12-ounce label weight. The students are sur- prised when they weigh the contents of their four pack- ages and find the average weight to be only 11.5 ounces. When they write to the company, its consumer relations representative explains that "the contents of the ‘12- ounce' packages average 12.2 ounces and have a stan- dard deviation of 0.4 ounces. The amount of cereal will vary from one box to the next, and your sample is very small-this explains why your average weight could be just 11.5 ounces." If the spokesperson's information is correct, how unusual would it be for these students to get a sample mean as small as the one they obtained? Be sure to state any assumptions you have made in obtaining your answer.

Reference no: EM13995637

Questions Cloud

What is the longest wavelength of light : Tungsten has a work function of 4.6 eV . What is the longest wavelength of light that will release an electron from a tungsten surface? Express your answer with the appropriate units.

Research and write a report on caring aids and equipment : Research and write a report on caring aids and equipment. Discuss the clients that would use each piece and how it would benefit the client and the staff. Describe each and outline how they are used correctly.

Problem regarding the requisite decision model : 1. Explain how modeling is used in decision analysis. What is meant by the term "requisite decision model"? 2. What role do subjective judgments play in decision analysis?

What is your total yield on the bond when you sell it : Five years ago, you bought a brand new bond with a maturity equal to 20 years. It pays an 8% coupon. When you bought it five years ago it was at a discount because at the time, the market rate on a similar bond was 9%. The market rate is now 7% an..

Problem regarding the consumer relations representative : As a project for their high school mathematics class, four class members purchase packages of a leading breakfast cereal for subsequent weighing and comparison with the 12-ounce label weight. The students are sur- prised when they weigh the con..

What is the sample proportion : a. What is the sample proportion, p 5 proportion of contacts that resulted in a sale being made? b. For simple random samples of this size, what is the probability that p # 0.10?

Average deviation from perfect accuracy : If the manufacturer's claim is correct (i.e., µ, 5 30 seconds, a 5 10 seconds), what is the probability that the average deviation from perfect accuracy would be 34 seconds or more?

What is the velocity of the box as it leaves the table : Find the accleration of the box during the sliding period. What is the velocity of the box as it leaves the table. What horizontal distance (R) from the table will the block reach when it hits the ground.

What z-score corresponds to the sample mean : When a production machine is properly calibrated, it requires an average of 25 seconds per unit produced, with a standard deviation of 3 seconds. For a simple random sample of n 5 36 units, the sample mean is found to be }x 5 26.2 seconds per unit..

User Account

All Pages