Imagine you have a close friend who has an eating disorder. Following the multipath model, describe factors that might contribute to the onset and continuation of the disorder. How would you help your friend with this disorder and what treatment options are available for this person?

1, An engineer wanted to determine how the weight of a car affects gas mileage. The accompanying data represent the weights of various domestic cars and their gas mileage in the city for a certain model year. Suppose that we add Car 12 to the original data. Car 12 weighs 3,305 pounds and gets 19 miles per gallon. Complete parts​(a) through​ (f) below.

(b) Compute the linear correlation coefficient with Car 12 included.

The linear correlation coefficient with Car 12 included is r =

​(Round to three decimal places as​ needed.)

(c) Compare the linear correlation coefficient of the part? (b) with the linear correlation coefficient for the original data. Why are the results here? reasonable?

i) The correlation coefficient changed significantly when Car 12 was added. This is reasonable since Car 12 does not follow the pattern of the original data.

ii) The correlation coefficients both indicate a strong negative correlation. This is reasonable since Car 12 does not follow the pattern of the original data.

iii) The correlation coefficients both indicate a strong negative correlation. This is reasonable since Car 12 roughly follows the pattern of the original data.

d) Now suppose that we add Car 13? (a hybrid? car) to the original data? (remove Car? 12). Car 13 weighs 2,890 pounds and gets 60 miles per gallon. Draw the scatter diagram with Car 13 included.

e) Compute the linear correlation coefficient with Car 13 included.

2, Researchers wondered whether the size of a​ person's brain was related to the​individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI counts and IQ scores. The data is reported to the right. Complete parts ​(a) through ​(d) below.

Critical Values for Correlation Coefficient

​(a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response variable. Choose the correct diagram below.

(b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly​ related? Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

​(Round to three decimal places as​ needed.)

A.​Yes, MRI count and IQ are linearly related since the linear correlation coefficient is

B.​No, MRI count and IQ are not linearly related since the linear correlation coefficient is

​(c) Draw a scatter​ diagram, but use a different plotting symbol for each gender. Choose the correct diagram below.

​(d) Compute the linear correlation coefficient between MRI count and IQ for females. Compute the linear correlation coefficient between MRI count and IQ for males.

The linear correlation coefficient for females is

The linear correlation coefficient for males is

​(Round to three decimal places as​ needed.)

1. A company has employed two workers A and B whose productivities are 20 units and 15 units respectively. The wage for A is K12 whilst B’s is K8. Are these two employees optimally employed?                                                                                              [5 Marks]
2. The average total cost of producing a tomato unit and the average variable cost are K2 and K1 respectively. Further, price is K10 and the firm operates in a competitive market.

1. Calculate the fixed and total costs of producing 1000 units of tomatoes. [4 Marks]
2. Calculate the profit the firm makes from selling 1000 tomatoes.              [2 Marks]
3. What is will happen in the market as a result of your answer in (ii)?           [5 Marks]

3. Briefly describe the condition associated with optimization of utility of an individual. [4 Marks]
4. Show (Derive) the mathematical relationship between marginal revenue and elasticity. [5 Marks]
5. A firm operating under a monopoly faces the following demand and cost functions: P=170 - 5Q and TC = 40 + 50Q + 5Q².

1. What’s the profit maximizing quantity and price?                                       [4 Marks]
2. What is the price elasticity of demand at the profit maximizing level?      [3 Marks]
3. Explain the strategy must the firm adopt to increase its revenue.                 [3 Marks]

6. Graphically show the relationship that exists between total revenue and elasticity for a price decrease along the demand curve.                                                                         [5 Marks]
7. Explain what determines who bears the most burden of a tax.                                 [5 Marks]

Ernest Rutherford (the first New Zealander to be awarded the Nobel Prize in chemistry) demonstrated that nuclei were very small and dense by scattering helium-4 nuclei (⁴He) from gold-197 (¹⁹⁷Au). See the figure below. The energy of the incoming helium nucleus was 8.80  10^-13 J, and the masses of the helium and gold nuclei were 6.68  10^-27 and 3.29  10^-25 kg, respectively (note that their mass ratio is 4 to 197). If a helium nucleus scatters to an angle of 120° during an elastic collision with a gold nucleus, calculate the helium nucleus's final speed.

Put the origin of the coordinate system at the site of the stationary gold nucleus and the +x direction in the direction in which the incoming helium nucleus travels. Write a statement of conservation of energy, momentum in the x direction, and momentum in the y direction to obtain three equations and three unknowns. See if you can solve the three equations simultaneously for the three unknowns. m/s

Calculate the final velocity (magnitude and direction) of the gold nucleus. (Assume the positive x direction is the direction in which the helium nucleus is initially traveling, and that it scatters 120° clockwise from the +x-axis.)

18) The Statement of cash flows provides information that may be useful in predicting future cash flows, evaluating financial flexibility, assessing liquidity, and identifying a company's financial needs. It is not, however, the best financial statement for learning about a firm's financial performance during a period. Information about a company's financial performance is provided by the income statement. Two basic principles-the revenue recognition principle and the matching concept-work to distinguish the income statement from the statement of cash flows. (a) Define the revenue recognition principle and the matching concept. (b) Briefly explain how these two principles work to make the income statement a better report regarding a firm's periodic financial performance than the statement of cash flows.

In Question 18, our authors focus on the Revenue Recognition and Matching Principles to distinguish between the Income Statement and the Cash Flow Statement. Is there another way to think of the Cash Flow Statement? What type of statement might it be?

The Camera Shop sells two popular models of digital SLR cameras (Camera A Price: 200, Camera A Price: 300). The sales of these products are not independent of each other, but rather if the price of one increase, the sales of the other will increase. In economics, these two camera models are called substitutable products. The store wishes to establish a pricing policy to maximize revenue from these products. A study of price and sales data shows the following relationships between the quantity sold (N) and prices (P) of each model:

   N_A = 195 - 0.5P_A + 0.35P_B

   N_B = 300 + 0.06P_A - 0.5P_B

Construct a model for the total revenue and implement it on a spreadsheet. Develop two-way data table to estimate the optimal prices for each product in order to maximize the total revenue. Vary each price from $250 to $500 in increments of $10.

Max profit occurs at Camera A price of $ .

Max profit occurs at Camera B price of $

Part C

Question 1

Mr. Kenny is an accountant at AF Textile, and he plays squash with Mr. Zuni, the CEO of AF Textile. The CEO wanted to decrease net income with the objective to pay lesser tax. Mr. Kenny was eager to get into Mr. Zuni’s elite social circle; he boasted to Mr. Zuni that he knew some accounting tricks that could decrease company income by simply disclosing company’s capital expenditure as their revenue expenditure. At the end of the year, Mr. Kenny changed the debits from “capital expenditures” to “revenue expenditure” on several transactions. Later, Mr. Zuni achieved his objective of paying lesser tax, and the manipulations were never discovered.

Required:

Differentiate between Capital Expenditure and Revenue Expenditure. (4 marks)

How did the change in journal entries affect the net income and net assets of the company at year-end?                                 (3 marks)

The Camera Shop sells two popular models of digital SLR cameras (Camera A Price: 230, Camera B Price: 310). The sales of these products are not independent of each other, but rather if the price of one increase, the sales of the other will increase. In economics, these two camera models are called substitutable products. The store wishes to establish a pricing policy to maximize revenue from these products. A study of price and sales data shows the following relationships between the quantity sold (N) and prices (P) of each model: NA = 192 - 0.5PA + 0.25PB NB = 305 + 0.08PA - 0.6PB Construct a model for the total revenue and implement it on a spreadsheet. Develop a two-way data table to estimate the optimal prices for each product in order to maximize the total revenue. Vary each price from $250 to $500 in increments of $10.

Max profit occurs at Camera A price of $ _______

Max profit occurs at Camera B price of $ _______