According to state government the monthly incomes of, Ask an Expert

Statistics

According to state government, the monthly incomes of college graduates have a standard deviation of $650. A county official believes that the standard deviation of monthly incomes is higher in her county.

A sample of 71 college graduates are randomly selected and found to have a standard deviation of $700.

a) Assuming the distribution of incomes of college graduates is normally distributed, test the claim using the p-value approach with alpha=0.05.

b) Interpret the meaning of the p-value within the context of the question.

Please help I'm lost doing this question!

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9392252

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

The weights of ice cream cartons are normally distributed

The weights of ice cream cartons are normally distributed with a mean weight of 20 ounces and a standard deviation of 0.5 ounces. You randomly select 25 cartons. What is the probability that their mean weight is greater ...

Introduction to epidemiology assignment -assignment should

Introduction to Epidemiology Assignment - Assignment should be typed, with adequate space left between questions. Read the following paper, and answer the questions below: Sundquist K., Qvist J. Johansson SE., Sundquist ...

The accompanying table presents the number of individuals

The accompanying table presents the number of individuals by smoking and disease status. What are the odds that a smoker will get Disease A? That a nonsmoker will get disease A? What is the odds ration? Disease A Smokin ...

How could legislation impact on operations within your

How could legislation impact on operations within your organisation in relation to innovation, project management, and operational planning? Briefly outline any relevant requirements (e.g. intellectual property, WHS).

At a university the probability that an incoming freshman

At a university, the probability that an incoming freshman will graduate within four years is 0.553. Use the normal approximation to estimate, to the nearest thousandth, the probability that (a) at least 60 out of a grou ...

Approximately once a month cars are shipped from rotterdam

Approximately once a month cars are shipped from Rotterdam, Holland to Lagos, Nigeria. The past data collection indicates that the weight of a car is normally distributed with the mean of 1,070 kg and the standard devia ...

Question i dont understand how you would test if the data

Question: I don't understand how you would test if the data shows that there is a difference between some supplies if the testing level is at 1%? Can you show me the steps of how you would test if the data shows that the ...

If material hardness is normally distributed with a mean of

If material hardness is normally distributed with a mean of 42 and a standard deviation of 1. Specification limits for hardness are from 35 to 45. When the fraction defective is 0.0017 what is the corresponding PPM?

Thirty-eight percent of consumers prefer to purchase

Thirty-eight percent of consumers prefer to purchase electronics online. You randomly select 16 consumers. Find the probability that the number who prefer to purchase electronics online is at most 5.

A tire company measures the tread on newly-produced tires

A tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.99mm and a standard deviation of 0.35mm. Find the probability that a randomly selected tire wi ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert