Let's say you have collected data from a large sample of participants on some variable that you think is normally distributed. In this case use IQ scores. Describe the variable and state whether the scale of measurement is nominal, ordinal, interval, or ratio, and why you came to that conclusion. What does it mean to say the variable is normally distributed? What is probability value and explain how a probability value of .05 in your example is related to the normal curve.

8) Your state is concerned about the potential for rising number of cases of COVID-19 during the Christmas holidays. Draw a problem tree to help you address root causes and consequences of this problem (COVID-19). Use arrows (not just lines). Be thoughtful as you consider the root causes. Label each part of the tree (problem, consequences, root causes). Note: You may draw this on your computer or draw by hand and take a picture and insert it in this document.

Please explain in detail and not through excel, so i understand each step

2. Calculate and plot the price of a security with the following characteristics at current market interest rates of 4%, 8% and 12%: Coupon equals 8%, maturity equals five years, face value equals $1,000. (Place price on the vertical (Y) axis and the current yield on the horizontal (X) axis.) Without doing the calculations, would the curve for a ten-year security be steeper or flatter than the one you have plotted? Why? What about a one-year security? Why?

i)Identify and briefly discuss two important aspects of planning
ii)What is a vision? Identify and explain any two reasons why a vision is important in planning?
please explain in detail

As the Executive Vice President of Sales for ACME Nose Hair Trimmers Inc., your sales force is divided into four regions: NW, SW, NE, and SE. Your CFO and HR Director have determined that you can promote 400 of your sales force in the following year, and you allocate those promotions to your Regional VPs of Sales as follows: NW gets 80, SW gets 120, and NE and SE get 100 each. (This allocation is based on the relative sizes of the regional sales forces.)

Your employees identify themselves by hair color, and when the promotions have been completed, your HR Director presents you with a demographic break-down of regional promotions by hair color as follows:

1. You receive a number of complaints from your employees that this year’s promotions were not assigned fairly (in that some VPs favored different hair colors), so you decide to determine if the distribution of promotions differed by region. You conduct a hypothesis test to this effect.

a. State your null hypothesis for this test.

b. State your alternative hypothesis for this test.

c. Describe the Type I error for this test and what its implications are for ACME NHT Inc.

d. Describe the Type II error for this test and what its implications are for ACME NHT Inc.

e. What is the critical value of your test statistic if you are willing to reject your null hypothesis at the a = .05 level of significance? (Ensure you identify what type of statistic it is.)

f. What is the calculated value of your test statistic? (Show as much work as necessary to ensure partial credit if you are not confident of your answer.)

g. What is the p-value for this test? What does it represent?

h. What do you conclude about your hypothesis test, and why?

i. What action will you take as the Executive Vice President of Sales?

9a. Name three ways in which the Antitrust laws make markets behave more competitively.

9b. What is the difference between Section 1 and Section 2 of the Sherman Antitrust Act, discuss and define?

9c. Explain what the Herfindahl- Hirschman index is, and how it is used by the Department of Justice to decide which mergers to challenge.

Describe the family into which you were born. That is, were your parents married when you were born? If so, would you characterize their marriage as endogamous or exogamous? Did you live in a nuclear or extended family? Provide as much detail as you can about your family experience, demonstrating your knowledge of terms and concepts from this chapter.

a. A hydrogen atom in the n=5 state decays to the n=3 state. What is the wavelength of the photon that the hydrogen atom emits? Use hc=1240 nm eV.

nm

b. While in the first excited state, a hydrogen atom is illuminated by various wavelengths of light. What happens to the hydrogen atom when illuminated by each wavelength?

486.3 nm?

491.3 nm?

335.1 nm?

For each wavelength pick from the following choices:

"stays in n=2 state" , "jumps to n=3 state", "jumps to n=4 state", "jumps to n=5 state", "jumps to n=6 state", "is ionized"

Note: For a transition between bound states (finite n) you need to match the correct wavelength to about 8 significant figures. For this problem, treat a transition as happening if the wavelength is within 1.0 nm.

Under what conditions does the Gauss-Markov Theorem guarantee the OLS estimators to be BLUE? State such conditions and explain each of them in your words. What does it mean for the OLS estimators to be BLUE? Explain

there is a discussion about how confidence intervals can be used to infer facts from your sample to the population. Select a variable you are likely to work with in your career, then using the video and the text in this course, answer the following questions:

1. Describe the variable and how it might be used in your career (the example from the video is battery life).

2. Explain why you would need to use a sample to infer something about the population.

3. In your own words, explain why you believe that a confidence interval will accurately predict the mean of the population from which the sample was drawn?

4. What would happen if the confidence interval for your chosen variable did not include the value of the population mean?

5. What changes to sample would make you more certain that the confidence interval contained the value of the population mean?