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how to determine if it is a p^ problem or a normal distribution

I need an overview of how probability works, how to determine if it is a p^ problem or a normal distribution

Subject:

Statistics

Topic:

All Topics

Posting ID:

3517

OTA ID:

101733

View Details $1.99 Download Add to Cart

Dependent probability

Problem 1. A class is given a list of 20 study problems from which 10 will be part of an upcoming exam. If a given student knows how to solve 15 of the problems, find the probability that the student will be able to answer, a. all 10 questions on the exam? b. exactly eight questions on the exam? c. at least nine questions on the exam? Problem 2. A class is given a list of 8 study problems from which 5 will be part of an upcoming exam. If a student knows how to solve 6 of the problems, find the probability that the student will be able to answer, a. all 5 questions on the exam? b. exactly 4 questions on the exam? c. at least four questions on the exam? Problem 3. 4 lette... click for more

Subject:

Statistics

Topic:

All Topics

Posting ID:

3518

OTA ID:

103139

View Details $1.99 Download Add to Cart

phstat clarification

For simplicity, I have taken my answers out and just left the questions. Please solve these problems by using Excel's add-in called PhStat. What this means is that if you have the add-in, you use it (in excel) for the calculations and then cut n paste them into word. If you DON'T have it, you can download and install it from here: http://www.sunflowerlabs.com/phstat If you have trouble installing, you can go here: http://www.prenhall.com/phstat/phstat2/setup(ver2).html http://www.prenhall.com/phstat/ After you paste the calculations into word, please answer the remaining questions. Let me know if this is still unclear.

Subject:

Statistics

Topic:

All Topics

Posting ID:

3569

OTA ID:

103059

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Testing a claim using confidence levels.

A computer store claimed that about 80% of all service calls are due to a malfunctioning processor. A sample of 100 service calls is randomly selected and it is found that 70 are due to malfunctioning of processors. Determine the 99% confidence interval for the true proportion of all service calls that are due to the malfunctioning of processors. Based upon the confidence interval that you constructed, what would you say about the validity of the stores claim?

Subject:

Statistics

Topic:

All Topics

Posting ID:

3585

OTA ID:

101733

View Details $1.99 Download Add to Cart

Testing a claim.

A man sells chickens to a restaurant chain. He claims that the mean weight of the chickens is 4 pounds. At a significance level of 0.05 shall we reject the vendors claim? Set up the hypothesis test in standard form and then carry out the test.

Subject:

Statistics

Topic:

All Topics

Posting ID:

3586

OTA ID:

101733

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