Begin by re-writing the problem. Minitab is required; attach or include your output. Type (use Word) your assignment; you may handwrite equations.

1. Semester GPAs are compared for seven randomly chosen students in each class level at Oxnard University. Do the data show a significant difference in mean GPAs?

1. At the 0.05 level of significance, determine if there is a difference in the mean GPAs by the four business majors. State your hypotheses.
2. Give and interpret the p-value.

Non-Parametric Tests

Complete each part and then put together a finalized report (Word document) of your findings. Copy/Paste any tables, Excel formulas, etc. in an appendix at the end of the document.

Part I - Do Students Really Cheat?

In a recent poll, 400 students were asked about their experiences with witnessing academic dishonesty among their classmates. Suppose 172 students admitted to witnessing academic dishonesty, 205 stated they did not and 23 had no opinion. Use the sign test and a significance of 0.05 to determine whether there is a difference between the number of students that have witnessed academic dishonesty compared to those that have not.

Part II – Is There Really a Difference in Studying vs. “Obtaining Answers”

Salaries were collected by recent graduates that were placed in groups that either admitted to dishonesty during college or they were honest the entire degree. We wish to test if after graduation their salaries are the same or if there is a difference in their salaries? Use a level of significance of 0.10. Be sure to clearly state what you are testing as well as interpret your final results.

The data is as follows:

rewrite the below-working principle of hydraulic power steering system in your own word with out missing the general concept of the principle

In this type of power steering system as we discussed above the hydraulic force is used to multiply the steering input force in order to smoothen the steering of the front wheels. This hydraulic force is generated by a series of components that include a hydraulic cylinder, rotator hydraulic pump, hydraulic lines, highly compressed hydraulic fluid, and a coupling mechanism that can couple this hydraulic system with the rack of the steering system.

• When the driver provides input by rotating the steering wheel, the hydraulic pump driven by the engine starts pumping the highly compressed hydraulic fluid through lines.

• The hydraulic pressure produced by the pump enters the hydraulic cylinder which in turn applies pressure over the cylinder’s piston.

• The piston which is under high pressure starts moving from one end to the other which in turn pushes the further fluid through lines, with this movement of piston the input force applied by the driver is multiplied several times.

• This high-pressure fluid sent by the hydraulic cylinder then applies the pressure to the attached pinion through the coupling mechanism which in turn applies high force to the rack gear and the steering action in the front wheels takes place.

Begin by re-writing the problem. Minitab18 is required; attach or include your output. Type (use Word) your assignment; you may handwrite equations.

1) Are women's feet getting bigger? Retailers in the last 20 years have had to increase their stock of larger sizes. Wal-Mart Stores, Inc., and Payless ShoeSource, Inc., have been aggressive in stocking larger sizes, and Nordstrom's reports that its larger sizes typically sell out first.  Twelve women from each age group were randomly selected and their shoe sizes recorded.  The data are shown below and may be found in the data filed named ShoeSize1.Use α = .05. 25 points.

• a) First test to determine if the variances in women’s shoe sizes differ between years. Show and follow the 7 steps for hypothesis testing. (8 points)
• b) What assumption is required to test for equality of variances? Construct an appropriate graph(s) using Minitab and explicitly answer if the assumption is valid or not. (5 points)
• c) Verify your results in part (a) using Minitab. (2 points)
• d) Using the information from your results in part (a), test to determine if average women’s shoe sizes have increased. Follow and show the 7 steps for hypothesis testing. (8 points)
• e) Verify your results in part (c) using Minitab. (2 points)

Begin by re-writing the problem. Minitab18 is required; attach or include your output. Type (use Word) your assignment; you may handwrite equations.

1) Are women's feet getting bigger? Retailers in the last 20 years have had to increase their stock of larger sizes. Wal-Mart Stores, Inc., and Payless ShoeSource, Inc., have been aggressive in stocking larger sizes, and Nordstrom's reports that its larger sizes typically sell out first.  Twelve women from each age group were randomly selected and their shoe sizes recorded.  The data are shown below and may be found in the data filed named ShoeSize1.Use α = .05. 25 points.

• a) First test to determine if the variances in women’s shoe sizes differ between years. Show and follow the 7 steps for hypothesis testing. (8 points)
• b) What assumption is required to test for equality of variances? Construct an appropriate graph(s) using Minitab and explicitly answer if the assumption is valid or not. (5 points)
• c) Verify your results in part (a) using Minitab. (2 points)
• d) Using the information from your results in part (a), test to determine if average women’s shoe sizes have increased. Follow and show the 7 steps for hypothesis testing. (8 points)
• e) Verify your results in part (c) using Minitab. (2 points)

Begin by re-writing the problem. Minitab18 is required; attach or include your output. Type (use Word) your assignment; you may handwrite equations.

1) In preliminary tests of a vaccine that may help smokers quit by reducing the “rush” from tobacco, 180 subjects who wanted to quit smoking were either given a placebo or the vaccine. Of the 90 in the placebo group, only 10 quit smoking compared with 25 of the vaccine group. (15 points)

a) At the .10 level of significance, determine if the vaccine is effective in reducing smoking. Follow and show the 7 steps for hypothesis testing. (8 points)

b) Is the criterion for normality met? (4 points)

c) Verify with Minitab, by attaching or including the output. (3 points)

Question 1 (Word Limit = 300 words)

David wants to buy a new business suit from a boutique designer in the city. A salesman helps him find the perfect suit but the jacket is a little loose around his waist. The salesman takes some measurements and explains that the suit can be altered and ready for collection by the end of the week. David pays for the suit and gives the salesman his contact details.

Before the suit is altered, a fire breaks out in the storeroom and the suit is destroyed. The boutique designer claims that David owned the suit at the time of the fire and therefore must bear the loss.

Use the IRAC method to advise David whether or not he will bear the loss of the destroyed suit based on the Sale of Goods Act

Write an 800-1,000 word essay on your personal worldview. Briefly discuss the various possible meanings of the term "spirituality," and your understanding of the concepts of pluralism, scientism, and postmodernism. Primarily, address the following seven basic worldview questions:

What is prime reality?

What is the nature of the world around you?

What is a human being?

What happens to a person at death?

Why is it possible to know anything at all?

How do people know what is right or wrong?

What is the meaning of human history?

Prepare this assignment according to the APA guidelines found in the APA Style Guide, located in the Student Success Center. An abstract is not required.

Provide a 300-plus word description of each topic:

The main reason for international trade, what gains derive from it, the conditions of the U.S. balance of payments, aspects of terms of trade, the main trade barriers and efforts to eradicate them, the arguments for protectionism and a comparison of the latter to the pros/cons of free trade; use graphs, formulas and examples to support your findings. Also address international finance, the evolution of the exchange systems, what affects currency rates and how those in turn influence prices, output and trade flows. Conclude with your outlook on the u.S. trade balance.

Provide a 300-plus word description of each topic:

The main reason for international trade, what gains derive from it, the conditions of the U.S. balance of payments, aspects of terms of trade, the main trade barriers and efforts to eradicate them, the arguments for protectionism and a comparison of the latter to the pros/cons of free trade; use graphs, formulas and examples to support your findings. Also address international finance, the evolution of the exchange systems, what affects currency rates and how those in turn influence prices, output and trade flows. Conclude with your outlook on the u.S. trade balance.