The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a mean annual rainfall of 42 inches. Assume that the standard deviation for both states is 4 inches. A sample of 33 years of rainfall for California and a sample of 46 years of rainfall for New York has been taken. (a) Show the probability distribution of the sample mean annual rainfall for California. A bell-shaped curve is above a horizontal axis labeled inches. The horizontal axis ranges from about −2.1 to about 2.1. The curve enters the viewing window near −2.1 just above the horizontal axis, curves up to the right, and reaches a maximum near 0. The curve then curves down and to the right until it leaves the viewing window at the same height it entered near 2.1. A bell-shaped curve is above a horizontal axis labeled inches. The horizontal axis ranges from about 39.9 to about 44.1. The curve enters the viewing window near 39.9 just above the horizontal axis, curves up to the right, and reaches a maximum near 42. The curve then curves down and to the right until it leaves the viewing window at the same height it entered near 44.1. A bell-shaped curve is above a horizontal axis labeled inches. The horizontal axis ranges from about 10 to about 34. The curve enters the viewing window near 10 just above the horizontal axis, curves up to the right, and reaches a maximum near 22. The curve then curves down and to the right until it leaves the viewing window at the same height it entered near 34. A bell-shaped curve is above a horizontal axis labeled inches. The horizontal axis ranges from about 19.9 to about 24.1. The curve enters the viewing window near 19.9 just above the horizontal axis, curves up to the right, and reaches a maximum near 22. The curve then curves down and to the right until it leaves the viewing window at the same height it entered near 24.1. Correct: Your answer is correct. (b) What is the probability that the sample mean is within 1 inch of the population mean for California? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (c) What is the probability that the sample mean is within 1 inch of the population mean for New York? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (d) In which case, part (b) or part (c), is the probability of obtaining a sample mean within 1 inch of the population mean greater? Why? part (b), because the standard error is smaller part (c), because the population standard deviation is smaller part (b), because the population standard deviation is smaller part (c), because the sample size is larger Correct: Your answer is correct.

Assume that you are hired by the Governor’s Office to study whether a tax on liquor has affected alcohol consumption in the state. You are able to obtain, for a sample of fifty individuals selected at random, the difference in liquor consumption (in ounces) for the year before and after the tax. For person i who is sampled randomly from the population, Yi denotes the change in liquor consumption. Treat these as a random sample from a Normal(µ, σ2 ) distribution.

(A) The Governor believes there was no change in alcohol consumption. How do you test his claim? State the null and alternative hypotheses.

(B) What if the Governor thought there was actually a drop in liquor consumption as a result of the tax? How would you setup the test in this case? State the null and alternative hypotheses. What economic arguments would you use to justify your choice of hypothesis test? 4

(C) Now assume that for your sample of size n=50, you have obtained a mean ?̅ = −32.8 and a sample standard deviation s = 100. Formally conduct the hypothesis test from part (B) using these values and a 5% significance level. Does your conclusion change at a 1% significance level?

(D) Construct a 95% confidence interval for the mean change in liquor consumption based on your hypothesis from point (A).

Section 2 Business Application in the EU

4. Discuss the positive and negative effects on consumer markets of EU market Competition Policy. Please use examples to support your response.

5. B+C Motorcycles are based in the UK looking to enter the European markets for the first time. Advise the company on the research information and methods that they should undertake in order to establish which country target market is most attractive to them.

6. Discuss the impact of robots on the millennial worker and the repercussions on EU Migration.

Your 20 year old cousin asks you about HIV and how it could affect her. Explain to her, using appropriate terminology (for a 20 year old relative):

i)    exactly how HIV can be transmitted,

ii)   how she could be at risk, and

iii)   what measures she could take to protect herself

6. Explain about van der walls interaction. Give an example to support your explanation.

7. Why CH4 molecule is not capable for hydrogen bond?

8. Discuss the properties of water that make it a good solvent and buffer.

9. Describe about amphipathic.

Is about optic physics (Difraction topic)

Please make diagrams for more illustrative. explain your reasoning PLEASE ! thanks!

The distance between the first and fifth minima of a single slit pattern is 0.350 mm with the screen away 41.3 cm from the slit, using light that has a wavelength of 546 nm. (a) How many minimums does the pattern have? (b) At what angles do they occur? (c) Find the width of the slit.

1. can ice be melted merely by applying pressure? how about dry ice? Explain your answers.
2. explain how the solid liquid line in the phase diagram of water differs in character from the solid liquid line in the phase diagrams of most other substances such as CO2.
3. which phase of a substance (gas, liquid or soild) is most likely to be the stable phase:(A) at low temperature and high presumes (b)at high temperature and low pressure?
4. at what temperature and pressures does a substance behave as a supercritical fluid?
5. explain why a needle floats on the surface of water but sinks in a container of methanol?
6. explain why the plumbing in a house may burst If the temperature in the house drops below O°C?
7. a hot needle sinks when placed on the surface of cold water but a cold needle floats why?
8.what kind of intermoloccular force must be overcome as (a) soild CO2 sublime (b) CHC13 boils (c) ice melts?

Explain in your own words how you would go about developing a behaviorally anchored rating scale