What are the differences between the Market Demand and Market Marginal Revenue curves and a Single Firms Demand Curve and Marginal Revue Curve? What causes these differences? What is the Quantity the firm can sell?

According to Southern California Edison(SCE) the mean electricity consumption during winter is 1650 kwh per month in Los Angeles area. Assume electric consumption have a normal distribution with a mean of 1650 kwh and a standard deviation of 320 kWh. SCE sent a notice to you informing that about 90% of the households use less electricity than you do.

a. what is your monthly electricity consumption?

b. Assume SCE conducted a telephone survey In Los Angeles area between December 2019 in January 2020 . according to the survey, 74% of consumers said SCE provided a satisfactory service. Assume that this result holds true for the current population of Los Angeles area. Let X denote the number of consumers in a random sample of three who hold the said opinion. Write the probability distribution of X, in draw a bar graph for x values of 0, 1, 2, and 3.

Mjorgan believes that there is no distinct difference within her first game played on each night, and her last. She does believe that there IS a difference between the three times she has bowled, though – as she improves. Run a statistical test to either confirm or refute Mjorgan’s analysis of the variation in her games.

Jeffrey is a 25-year old full-time salaried AI engineer. He earned $85,000 in 2017, 10% more than he earned in the previous year in Calgary. Jeffrey moved to Montreal in 2017 to take up his new position at a cost of $7,000 (funded by a withdrawal from his TFSA). He has always contributed the maximum to his RRSP and TFSA. Jeffrey takes public transit to work at a cost of $960 a year and lives alone. His employer provides a medical plan at a premium of $1,200 a year. Other than the premium, Jeffrey’s only other medical cost in 2017 was a $5,000 dental bill. He pays the maximum contribution to Employment Insurance (EI), the Quebec Pension Plan (QPP) and the Quebec parental insurance plan (PPIP). He does not contribute to an employer pension plan.

Refer to the Federal Schedule 1 for residents of Quebec at https://www.canada.ca/en/revenue-agency/services/forms-publications/tax-packages-years/general-income-tax-benefit-package/quebec/5005-s1.html

                                                                            TABLE B

How much did Jeffrey contribute to his RRSP in 2017?

How much can Jeffrey contribute to his TFSA as of January 2018? Refer to Table B at the end of this case study.

Please answer the following questions based on the analysis in excel.

1. Calculate the mean, standard deviation, and variance of the two samples. Embed the answers in the data sheet.

2. Calculate the degrees of freedom for a t test assuming the population standard deviation is unknown with unequal variance between samples.

3. Perform a two-tailed two-sample mean test assuming the population standard deviation is unknown with unequal variance. (.01 significance level)

4. State your conclusion from the two-tailed test.

Question 1 Impact of changing price upon revenue and profit

A suburban factory makes three types of motorcycles. Each type of motor is made of engine parts and two wheels. The factory uses three brands of engine parts – Chrome Catalyst, Platinum Power and Silver Streak.   Motorcycles are built and sold as follows;


Type 1 -Chrome Catalyst engine parts
Type 2 Platinum Power engine parts
Type 3 Silver Streak engine parts Cost of engine parts $876 $1228 $1024 Cost of wheels (each) $65 $65 $65 Sale price range $1000 - $1200 $1400 - $1600 $1200 - $1400


Regardless of the type of engine parts used to make a motorcycle, there are fixed production costs of $4000.

Your task is to investigate the cost, revenue and profit associated with each type of motorcycle.


Steps to complete to undertake the investigation

1. Find the total cost and total revenue functions for each type of motorcycle and plot these functions using Excel. You will produce 3 graphs (one for each motorcycle type), each with two lines on it. For the revenue function, select a price for each motorcycle type within the price ranges in the table above.


2. Confirm any points of intersection between the cost and revenue function lines using algebra, round your final answer up to the next whole number.

3. Profit will also differ for each motorcycle type. Find the profit functions and the break-even points for each type of motorcycle.

4. Summarise your findings in 200 words. In your conclusion:

a. Explain the meaning and significance of any points of intersection noted from steps 1 and 2 and any similarities noted from you results in step 3. b. Discuss any differences in profitability between each type of motorcycle (for example, which motorcycle type would be easiest to make a profit from?) c. Note any assumptions you have made and any limitations of your findings.

Adger Corporation is a service company that measures its output based on the number of customers served. The company provided the following fixed and variable cost estimates that it uses for budgeting purposes and the actual results for June as shown below:

When preparing its planning budget the company estimated that it would serve 35 customers per month; however, during May the company actually served 40 customers.

What amount of revenue would be included in Adger’s flexible budget for June?

What amount of employee salaries and wages would be included in Adger’s flexible budget for June?

What amount of travel expenses would be included in Adger’s flexible budget for June?

What amount of other expenses would be included in Adger’s flexible budget for June?

What net operating income would appear in Adger’s flexible budget for June?

What is Adger’s revenue variance for June?

What is Adger’s employee salaries and wages spending variance for June?

What is Adger’s travel expenses spending variance for June?

What is Adger’s other expenses spending variance for June?

What amount of revenue would be included in Adger’s planning budget for June?

What amount of employee salaries and wages would be included in Adger’s planning budget for June?

What amount of travel expenses would be included in Adger’s planning budget for June?

What amount of other expenses would be included in Adger’s planning budget for June?

What activity variance would Adger report in June with respect to its revenue?

What activity variances would Adger report with respect to each of its expenses for June?

Chief Complaint: 74-year-old woman with shortness of breath and swelling.

History: Martha Wilmington, a 74-year-old woman with a history of rheumatic fever while in her twenties, presented to her physician with complaints of increasing shortness of breath ("dyspnea") upon exertion. She also noted that the typical swelling she's had in her ankles for years has started to get worse over the past two months, making it especially difficult to get her shoes on toward the end of the day. In the past week, she's had a decreased appetite, some nausea and vomiting, and tenderness in the right upper quadrant of the abdomen.

On physical examination, Martha's jugular veins were noticeably distended. Auscultation of the heart revealed a low-pitched, rumbling systolic murmur, heard best over the left upper sternal border. In addition, she had an extra, "S₃" heart sound.

Top of Form

Questions:

1. What is causing this murmur?

2. What is causing her "S₃" heart sound?

3. Is her history of rheumatic fever relevant to her current symptoms? Explain.

4. A chest X-ray reveals a cardiac silhouette that is normal in diameter. Does this rule out a possible problem with Martha's heart? Explain.

Chief Complaint: 74-year-old woman with shortness of breath and swelling. History: Martha Wilmington, a 74-year-old woman with a history of rheumatic fever while in her twenties, presented to her physician with complaints of increasing shortness of breath ("dyspnea") upon exertion. She also noted that the typical swelling she's had in her ankles for years has started to get worse over the past two months, making it especially difficult to get her shoes on toward the end of the day. In the past week, she's had a decreased appetite, some nausea and vomiting, and tenderness in the right upper quadrant of the abdomen. On physical examination, Martha's jugular veins were noticeably distended. Auscultation of the heart revealed a low-pitched, rumbling systolic murmur, heard best over the left upper sternal border. In addition, she had an extra, "S3" heart sound. Top of Form

5. You examine Martha's abdomen and find that she has an enlarged liver ("hepatomegaly") and a moderate degree of ascites (water in the peritoneal cavity). Explain these findings. 6. Examination of her ankles reveals significant "pitting edema." Explain this finding. 7. She is advised to wear support stockings. Why would this help her? 8. Which term more accurately describes the stress placed upon Martha's heart -- increased pre-load or increased afterload? 9. What is the general term describing Martha's condition? 10. How might Martha's body compensate for the above condition? 11. Martha is started on a medication called digoxin. Why was she given this medication, and how does it work? 12. Two weeks after starting digoxin, Martha returns to the physician's office for a follow-up visit. On physical examination, she still has significant hepatomegaly and pitting edema, and is significantly hypertensive (i.e. she has high blood pressure). Her physician prescribes a diuretic called furosemide (or "Lasix"). Why was she given this