Please answer the following q

1) (10 Points) Explain, with the aid of two or three equations, the nucleosynthesis of the lighter elements. Why is the abundance of iron in the universe relatively high? What process is primarily responsible for the formation of elements heavier than iron? Use equations to show an example of this process.

2) (10 points) What metals were known and used in antiquity. Why these metals and not others? The Bronze Age preceded the Iron Age. What is bronze and why was bronze known and used more extensively before iron. What was needed for iron to become the more available, and what properties made it more useful than other metals at the time.

3) (10 points) From the Ellingham diagram below, what is the lowest temperature at which magnesium oxide can be reduced by carbon. Write the oxidation and reduction half reactions for this process, along with the overall reaction at this temperature.

4) (15 points) Three of the structures adopted by metallic elements are face-centered cubic, body-centered cubic, and primitive (simple) cubic. Draw a unit cell for each of these structures and determine the number of metal atoms in each. In which structure is the volume occupied by atoms the greatest? Which of these structures are close-packed? For the close-packed structure, give the number of nearest neighbor atoms, the number of octahedral holes, and the number of tetrahedral holes per atom.

5) (15 points) Define lattice enthalpy. Using a Born-Haber cycle determine the lattice enthalpy of potassium chloride from the data below. Draw a graph that shows each step in the cycle.

Process

Ho (kJ/mol)

Sublimation of K(s)

+89.0

Ionization of K(g) to K+(g)

+425

Dissociation of Cl2(g)

+244

Electron Attachment to Cl(g)

-355

Formation of KCl(s)

-438

6) (10 points) Give the condensed ground state electron configurations of the following:

a. S b. Mo c. Ti+d. Gd3+e. Fe

7) (15 points) For the hypothetical linear H5 molecule sketch the linear combinations of 1s atomic orbitals that make up the molecular orbitals for this molecule. Order these orbitals in terms of energy, identifying the most bonding and the most antibonding orbitals. Indicate the number of nodes for each orbital. How does the MO diagram for this molecule relate to the band structure of solids?

8) (15 points) Draw the band structure diagrams for a conductor, an insulator, an intrinsic semiconductor, a p-doped semiconductor, and an n-doped semiconductor. Indicate occupied levels, empty levels, and relative band gaps. Give an example of each of these materials.

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Please Answer the following q

Question 1

Capital asset pricing model (CAPM) is a widely accepted, though controversial, theory of asset pricing in the capital market. According to CAPM, the expected return of any asset in the capital market is a linear function of the expected return on the whole market and the expected return of the risk free rate. Mathematically the model is stated as per Equation 1

E(Re) = E(RFR) + β *E(Rm – RFR)(1)

Where, E(Re) is the expected rate of return on a specific asset, E(RFR) is expected risk free rate, β is sensitivity of the stock return with respect to the overall market return, E(Rm – RFR) is the expected capital market risk premium.

Empirical verification of CAPM is done through running a regression model of historical returns of stocks against historical returns of the overall market.

In this part of your assignment you will be doing the following:

  1. Select the stock of a publicly traded company with at least 20 years of price history and download the stock’s last 20 years price history from yahoo finance or other sources.
  2. Select a broad stock market index, such as S&P 500 Index, Russell 3000 Index, etc. and download its last 20 years of price history.
  3. Use the adjusted closing prices of the stock and the index and calculate the annual rate of return of each.
  4. Consider the stock’s annual return as the dependent variable and the index’s annual return as the independent variable and run the following regression model:

undefined

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    1. Re = α + β*Rm + ε
  1. Where, Re is the realized annual rate of return of your stock, Rm is the realized annual rate of return on the overall capital market, and is ε the error term.
  2. After estimating the regression coefficients of Equation (2) through the OLS method, conduct a test of hypothesis and determine if the estimates of αandβare statistically significant at 5% level and report their t statistics and p values.
  3. Determine if the F value for the correlation coefficient is statistically significant at 5% level
  4. What is your interpretation of the R-square value? Explain to what extent your regression estimates can predict future return of your stock against your index’s movements
  5. What is the estimate of RFR?
  6. Calculate the value of the error term for each year and construct the histogram of the error terms
  7. Using the Explore feature in SPSS, conduct a test for normality of the error terms and exhibit the normality plot
  8. Does the result of the test for normality of the error terms affect the validity of your regression model? Please explain
  9. Present an APA formatted write-up of your finding in one paragraph.

Question 2

To determine the effectiveness of a sleeping drug, 75 people were randomly selected; 25 were randomly assigned to take the drug, 25 were randomly assigned to take the placebo, and the other 25 did not receive any treatment. The time to fall asleep after going to bed were measured for the three groups and is reported in the table below:undefined

New Drug

Placebo

N0-Treatment

12

44

32

17

32

33

34

28

21

11

30

12

5

22

15

42

12

14

18

3

55

27

12

67

2

42

72

37

13

1

50

27

44

32

54

60

12

56

36

27

32

38

21

37

49

10

28

66

4

22

89

33

22

63

63

24

23

22

9

6

41

20

9

19

4

56

28

13

28

29

42

39

8

67

59

You want to conduct a one-way ANOVA to examine if there is a statistically significant difference at 5% level between the average time to fall asleep of the three groups

  • State the Null and Alternate hypotheses in the proper conventional format. Define any symbol that you use to state your hypothesis.
  • Copy and paste your SPSS output in your Word document.
  • Interpret the F and p values in your SPSS report.
  • From the information in the SPSS output calculate the F statistic manually and compare it with the F value in the SPSS output.
  • If appropriate conduct a post hoc test to determine which two groups average time to fall asleep are statistically different.
  • What is the real-life implication of your step 5 results?
  • Report the Levene statistic for the mean and median and interpret them.
  • What are the assumptions of one-way ANOVA? Do the assumptions hold for the data used in this exercise?
  • Present an APA formatted write-up of your complete results, one paragraph for the ANOVA results, one paragraph for the post hoc results, and one paragraph for validity of the assumptions.

Please be sure to include in-text citations and peer reviewed references in your discussion post.

Question 3

Please prepare a professional PowerPoint presentation summarizing your findings for question 1 and question 2 of this assignment. The presentation will consist of your major findings, analysis, and recommendations in a concise presentation of 10 slides (minimum). You should use content from questions 1 and 2 as material for your PowerPoint presentation.

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