Question checking for survey errors one way of checking the, Ask an Expert

Statistics

Question: Checking for survey errors One way of checking the effect of undercoverage, nonresponse, and other sources of error in a sample survey is to compare the sample with known facts about the population. About 12% of American adults identify themselves as black. Suppose we take an SRS of 1500 American adults and let X be the number of blacks in the sample.

(a) Show that X is approximately a binomial random variable.

(b) Check the conditions for using a Normal approximation in this setting.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92572775

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Fifty-seven percent of employees make judgements about

Fifty-seven percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly select 8 employees and ask them if they judge co-workers based on this criterion. The random va ...

1 summary statistics for returns on two stocks x and y are

1. Summary statistics for returns on two stocks X and Y are listed below. Mean Variance Stock X 2.83% 0.006000 Stock Y 5.98% 0.003000 The covariance of returns on stocks X and Y is 0.001500. Consider a portfolio of 80% s ...

Initial outlay is 16853year 1 5625year 2 5504year 3

Initial outlay is $16,853 Year 1 $5,625 Year 2 $5,504 Year 3 $5,892 Year 4 $8,851 What is the discounted payback period? The discount rate is 10%...Round answer to two decimal points

How can a graph or chart of data help you understand the

How can a graph or chart of data help you understand the results? What is a frequency table? Describe an example where a frequency table can be used in life.

A mortgage broker is offering a 188900 20-year mortgage

A mortgage broker is offering a $188,900 20-year mortgage with a teaser rate. In the first two years of the mortgage, the borrower makes monthly payments on only a 4.5 percent APR interest rate. After the second year, th ...

A bottle of water is supposed to have 20 ounces the

A bottle of water is supposed to have 20 ounces. The bottling company has determined that 98% of bottles have the correct amount. Which of the following describes a binomial experiment that would determine the probabilit ...

It has been argued that although there may be more claims

It has been argued that although there may be more claims when road conditions are slippery in the winter, this should not affect the average claim. Malpeque took a sample of 50 claims from the winter of 2018 and found t ...

One-year treasury bills currently earn 225 percent you

One-year Treasury bills currently earn 2.25 percent. You expected that one year from now, 1-year Treasury bill rates will increase to 2.75 percent and that two years from now, 1-year Treasury bill rates will increase to ...

A system consists of five independent components in

A system consists of five independent components in parallel. The system will work if at least one of the five components works. Let Ci represent the event that component i works, i=1,...,5. P(Ci)=0.97 for all i. What is ...

Assume the probability of a male being lt 21 is 1867 the

Assume the probability of a male being 50 is 4.80%, and the probability of being female and > 50 is 8.00%. Based on this information and the information in the tables above, what is the probability that someone

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