write an introduction/ overview of a company listed on the stock exchange (check to be sure they have annual reports available online). Describe the company and their product(s)/service(s), a brief history, their vision and mission (if they do not have formal statements describe what you feel they might be) the industry they are in, their size (sales, income, number of employees), and your perception of their competitive advantage(s). State what the company’s goal may be ($xx sale for the coming year, for instance, or a certain percentage of profit).

Problem Statement: After doing background reading on the company, write a Problem Statement consisting of a single sentence describing a problem at the organization (it can be related to marketing, operations, finances, personnel). State the problem in a sentence: The problem at xxx is xxxx. Provide a short background about the problem.

Marketing companies have collected data implying that teenage girls use more ring tones on their cellular phones than teenage boys do. In one particular study of 40 randomly chosen teenage girls and boys (20 of each) with cellular phones, the average number of ring tones for the girls was 3.4 with a standard deviation of 1.7. The average for the boys was 1.6 with a standard deviation of 0.7. Conduct a hypothesis test at the 5% level to determine if the averages are approximately the same or if the girls' average is higher than the boys' average. NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

If you could tell me how to solve this on the tI-84 calculator that would be best thanks!

A) State the distribution to use for the test. (Enter your answer in the form zor t_dfwhere dfis the degrees of freedom. Round your answer to two decimal places.)

B) What is the p-value? (Round your answer to four decimal places.)

C) Explain what the p-value means for this problem.

D) Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the p-value. (Upload your file below.)

Titration of Na₂CO₃ with HCl. You may want to record your answers in the Data Collection section of your lab manual for use during the lab. (pK_a1(H₂CO₃) = 6.352, pK_a2(H₂CO₃) = 10.329).

(a) What are the first and second equivalence volumes (V_eq1 and V_eq2) when 20.00 mL of 0.10 M Na₂CO₃ is titrated with 0.20 M HCl?

V_eq1 = ? mL
V_eq2 = ? mL

(b) What do you expect the pH to be at the following points

The first midpoint of the titration.
pH =  

The first equivalence point of the titration.
pH =  

The second midpoint of the titration.
pH =

(c) Calculate the pH at each of the following volumes of 0.20 M HCl added to 20.00 mL of 0.10 M Na₂CO₃.

Question 1

(a)   For the nucleation process, explain the difference between homogeneous and heterogeneous nucleation. Why heterogeneous nucleation is more common than

homogeneous nucleation.

(b) (i) Sketch and label the cross-section view of common macrostructure of a metal ingot after solidification process.
(ii) If the molten metal is added with 2 wt% of grain refiner, explain how the grain refiner changes the macrostructure of this metal ingot.

(c)   What is the difference between point defect and line defect?

(d)   Briefly explain why vacancies and self-interstitials are considered as the crystal defects?

Use HSAB concepts to make predictions about which member of each pair should be more stable.

Explain your reasoning in each case.

(a) (PtCl4)2- or (PtF4)2-

(b) [Fe(H2O)6]3+ or [Fe(PH3)6]3+

(c) F3B:THF or Cl3B:THF

(d) (CH3)3B:PCl3 or (CH3)3B:P(CH3)3

(e) (CH3)3Al:pyridine or (CH3)3Ga:pyridine

Read the excerpts by Seyyed Hosein Nasr and Daud Sutton. Explain the relationship between the concept of Divine unity and the void in relation to Islamic art. How do the tradition of geometric design, natural motifs and calligraphy express core theological insights and beliefs about the Divine? Use the instructions found in the excerpt from Sutton’s book to create a geometric design and include this in your journal submission.

Read the excerpts by Seyyed Hosein Nasr and Daud Sutton. Explain the relationship between the concept of Divine unity and the void in relation to Islamic art. How do the tradition of geometric design, natural motifs and calligraphy express core theological insights and beliefs about the Divine? Use the instructions found in the excerpt from Sutton’s book to create a geometric design and include this in your journal submission.

1. There are multiple sections of 3 classes that have to be offered. Class A has an average enrollment of 120 per term. Class B has an average of 100 students per term and Class C has an average enrollment of 85 students per term. The rules for opening and cancelling sections are as follows:

1. Any section of this class must have at least 15 students to run. Any less than this and the section is cancelled.
2. Each section has a maximum enrollment of 45 students.
3. A new section will open up when the previous section (s) have an average enrollment of 40.
4. A new section will open up to accommodate department regulations on staffing.

For each class run a simulation using your chosen distribution and determine the following:

1. Given that anytime enrollment in a class reaches over 175 students, there will be 5 sections of class, what is the probability of this happening with each class?

Class A =

Class B =

Class C =

ii)    Given that anytime enrollment in a class reaches 135 students to 180 students, there will be 4 sections of class, what is the probability of this happening with each class?

Class A =

Class B =

Class C =

3. Given that anytime enrollment in a class reaches 95 students to 120 students, there will be 3 sections of class, what is the probability of this happening with each class?

Class A =

Class B =

Class C =

4. If a third section of Class C opens when enrollment goes above 80, and it gets cancelled when enrollment is below 95, How often does the third section get cancelled? (Enrollment is between 80 and 95)

5. Based upon the probabilities you found above, how many sections of each class do you offer? 2, 3, 4 or 5?

Class A =

Class B =

Class C =

Using the number of sections, you found above create a schedule that maximizes the quality of teaching these classes. Full Time profs must teach 3-4 sections. Part time profs must teach 1-2 sections.

6. What is the minimum number of sections (total) that need to be offered?

7. What is the maximum number of sections (total) you can offer?

Professor Data is below:

Given your answers in part v, and possibly modified by your answers in part vi, what is the quality score of your department’s teaching?

How many sections of each class do the professors teach?

(a) What is the rule for the optimal use of (3) resources in production? (b) Explain what the rule means in simple English.