1 - Menstrual cycle length. Problem 3 calculated the mean length of menstrual cycles in an SRS of 9 women. The data revealed days with standard deviation s = 2.906 days.

a - Calculate a 95% confidence interval for the mean menstrual cycle length.

b - Based on the confidence interval you just calculated, is the mean menstrual cycle length significantly different from 28.5 days at α = 0.05 (two sided)? Is it significantly different from μ = 30 days at the same α-level? Explain your reasoning. (Section 10.4 in your text considered the relationship between confidence intervals and significance tests. The same rules apply here.)

Describe how a researcher might use naturalistic observation, case studies, or survey research to investigate gender differences in aggressive behavior at the workplace. first, state a hypothesis and then Describe your research approach. You should offer at least one citation to support your work.

Briefly write about your thoughts about Freedom of Speech on the Internet.

What are the major states a process can move between and what the events that cause process to move in and out of each state ? What are the major types of PSU schedulers? Explain how the context-switch process is performed and when.

An administrative manager for Universal Engineers, Inc. is studying the frequency of required service on the company’s copy machines. A random sample of six copy machines revealed that the number of copies made before a service technician was called

237000
234011
239194
230795
229000
228000

The manufacturer claims that these copiers typically make 240,000 copies before needing service. At the .05 significance level, is the performance of the copiers different for Universal Engineers from the manufacture claims?

a)State the null hypotheses for this study.

b)State the alternative hypotheses for this study.

c)Select the graph which represents the type of hypothesis test.

d)What is the critical value?   (Enter value with 4 decimal places.

e)Calculate the test statistic.   (Enter value with 3 decimal places

f)Do we reject or not reject the null hypothesis?

g)Provide the p-value

h)What is the definition of the p-value?

I)Based on the computed test statistic or p-value, what is the decision about the average number of copies?

And please sow the equation you use so I can recheck and learn, Thank you.

Trade

Use economic concepts that you acquired in this class to answer the following question. You must also supplement your text with researched information that will support your arguments:

Describe the positive or negative impact(s) of international trade or of globalization on a developing country or region of your choice.

You should include all of the following in your text, but can choose to incorporate more information so as to provide a more complete response:

o   Briefly describe the country or region of your choice by focusing on that country’s trade patterns with one or many of its important trade partner(s). You must use statistical data in part to address this point.

o   Incorporate at least one economic theory learned in class and explain it in the context of trade in developing countries.

o   Describe the positive or negative impact(s) that international trading or that globalization has had for that country or for that region.

Discussion Forum Instructions

General Instructions:

o   You must incorporate in your paper economic theories learned in class and apply them to your analysis.

o   You must state your interpretation of the information that you provided and then justify your interpretation using several arguments that you will need to explain.

o   You should take a balanced position.

Special Instructions:

o   Your response to the discussion forum prompt must be of at least 450 words.

o   You must respond to at least three (3) of your classmates.

o   Each of your responses to your classmates must be of at least 150 words.

o   You must submit your response to the prompt by Thursday midnight

Depreciation and Sale of Business Property (chapter 8).

1. What are the differences between these three code sections: 1231, 1245 and 1250, and when do you apply each?
2. What is Section 179 and When may this Section 179 be used?
3. How does the depreciation recapture rules work?

Depreciation and Sale of Business Property (chapter 8).

1. What are the differences between these three code sections: 1231, 1245 and 1250, and when do you apply each?
2. What is Section 179 and When may this Section 179 be used?
3. How does the depreciation recapture rules work?

I have two bags. Bag 1 contains 10 blue marbles, while Bag 2 contains 15 blue marbles. I pick one of the bags at random and add 6 red marbles in it. Then I shake the bag and choose 5 marbles (without replacement) at random from the bag. If there are exactly 2 red marbles among the 5 chosen marbles, what is the probability that I have chosen Bag 1?

5. Two fair, distinct dice (one red and one green) are rolled. Let A be the event the red die comes up even and B be the event the sum on the two dice is 8. Are A,B independent events?

According to the American Lung Association 7% of the population has lung disease. Of the people having lung disease 90% are smokers. Of the people not having lung disease 20% are smokers. What are the chances that a smoker has lung disease?