1) ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store.

the number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, and 11.

find the standard deviation of the sampling distribution for the p-bar chart.

a) there is not enough information to answer the question.

b) .081

c) 8.1

d) .0273

e) .0863

E) .0863

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

Solution to the problem

For this case we can find the sample proportion for each observation with the following formula:

Where X represent the number of returns and n =100 for each case since the standard value used. Using the last formula we got:

And now witht those values we can find the sample mean of proportions with the following formula:

And we can find the standard error with the following formula:

So then the best option on this case is given by:

E) .0863

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20