j

A medium containing substance that cause some bacteria to look differently than others is called a differential medium. MSA is a medium that changes colors when S. aureus is present because that species can ferment the mannitol in the medium and cause a pH change. T or F

Calculation of Bacterial Counts from a Dilution Plate: A total of 145 colonies were counted on the plate that received 1.0 mL of the 1:10,000 dilution of a specimen. The bacterial count is obtained by multiplying the number counted on the plate multiplied by the dilution factor. What is the bacterial count for the original specimen?

1,450 colonies/mL

14,500 colonies/mL

145,000 colonies/mL

1,450,000 colonies/mL

14,500,000 colonies/mL

Indicate which of the following observations can be made when observing growth on Nutrient Agar.

opacity/clarity of colonies

color of colonies

shape and /or pattern of growth

none of the above

all the above

Macroscopic Observations: Colony characteristics on NA plates include the vertical dimension of a colony, which is referred to as its elevation. The terms crateriform, umbonate, convex, flat, and raised are all used to describe the elevate of a colony. T or F

Purpose of SIM (sulfur, indole, motility) Medium: What can be detected by using SIM medium?

motility

tryptophan degradation

H2S production

all the above

none of the above

Many bacteria can move using flagella. Motility can be observed by using Wet Mounts. Another way to differentiate motile versus nonmotile organisms is through the inoculation SIM medium. SIM medium is inoculated with bacteria in a straight line within the culture tube. Diffuse turbidity in the medium are indicative of motile organisms, and nonmotile bacteria will only grow along that line of inoculation. Motility is usually observed by using a _______ medium.

liquid

hard solid

semisolid

Tryptophan Hydrolysis Results: In the SIM test, Tryptophan hydrolysis results in the production of indole, which is detected by the addition of Kovac’s reagent. T or F

You have inoculated a SIM tube and 48 hours later the following results are recorded. The medium is black, turbid all over, and there is no red ring when you add Kovak’s reagent. Which of the following represent the correct interpretation of these results?

H2S +, Motile, Indole –

H2S +, Nonmotile, Indole +

H2S -, Nonmotile, Indole +

Mannitol Fermentation +, Nonmotile, Indole +

Mannitol Fermentation -, Motile, Indole +

Smoky Mountain Corporation makes two types of hiking boots—the Xtreme and the Pathfinder. Data concerning these two product lines appear below:

The company has a traditional costing system in which manufacturing overhead is applied to units based on direct labor-hours. Data concerning manufacturing overhead and direct labor-hours for the upcoming year appear below:

Required:

1. Compute the product margins for the Xtreme and the Pathfinder products under the company’s traditional costing system.

2. The company is considering replacing its traditional costing system with an activity-based costing system that would assign its manufacturing overhead to the following four activity cost pools (the Other cost pool includes organization-sustaining costs and idle capacity costs):

Compute the product margins for the Xtreme and the Pathfinder products under the activity-based costing system.

3. Prepare a quantitative comparison of the traditional and activity-based cost assignments.

P1. The following trial balance was taken from the books of Coyote Company as of December31, 2019.

       Account     ​​   Debit   ​Credit

Cash ​  ​​ $60,000

Accounts receivable ​​   50,000

Allowance for doubtful accounts   ​   ​   $ 1,000

Short-Term notes receivable      ​   20,000

Inventory, January 1, 2019         ​​    70,000

Furniture and equipment           ​   210,000

Accumulated depreciation of F & E   ​ ​   40,000

Patents​​   ​   100,000

Accounts payable       ​​​  22,000

Bonds payable​​​  20,000

L-T notes payable​​​  15,000

Common stock     ​​​ 290,000

Retained earnings   ​​​ 87,000

Dividends​   ​   20,000

Prior period adjustments​   10,000

Sales           ​​​700,000

Sales returns & allowance​   40,000

Sales discount​   10,000

Rent revenues​   60,000

Interest revenues​   10,000

Purchase         ​  ​​ 420,000

Purchase returns & allowance​   20,000

Selling expenses​   60,000

Advertising expense​   30,000

Supplies expense​​   6,000

Insurance expense​​   24,000

Wage and Salary expense     ​   90,000

Rent expense   ​​   60,000

Loss on sale of PS store before tax​​   10,000

Operating income from PS store before tax ​  ​ 25,000

Totals                   ​ ​​1,290,000 ​1,290,000

At the year end, the following items have not been recorded.

a. Insurance premium expired during the year, $14,000.

b. Estimated bad debts expense, 1.0% of net sales.

c. Inventory as of 12/31/2019 turned out to be $50,000.

d. Office supplies were purchased for $6,000 and charged to supplies expenses then. There are $2,000 of supplies remaining as of 12/31/2019

e. Six months’ rent of $60,000 was paid in advance on September 1, 2019 and charged to rent expense then.

f. Furniture and equipment have an average useful life of 5 years and salvage value of

$10,000. Coyote Company uses the straight-line method of depreciation.

g. Patents have been amortized by $10,000/year.

h. Utility bill of $2,000 for the month of December 2019 will be paid on its due date, January 10, 2020.

i. Salaries earned but not yet paid by December 31, 2019, $8,000.

j. Tax rate = 30%.

Instructions: prepare

1. Any necessary adjusting entries at the end of 2019.

2. Income Statement and statement of retained earnings, and balance sheet of the company for the year 2019 in good forms (i.e. multiple-steps statements)

3. Any necessary closing entries at the end of 2019

Smoky Mountain Corporation makes two types of hiking boots—the Xtreme and the Pathfinder. Data concerning these two product lines appear below:

The company has a traditional costing system in which manufacturing overhead is applied to units based on direct labor-hours. Data concerning manufacturing overhead and direct labor-hours for the upcoming year appear below:

Required:

1. Compute the product margins for the Xtreme and the Pathfinder products under the company’s traditional costing system.

2. The company is considering replacing its traditional costing system with an activity-based costing system that would assign its manufacturing overhead to the following four activity cost pools (the Other cost pool includes organization-sustaining costs and idle capacity costs):

Compute the product margins for the Xtreme and the Pathfinder products under the activity-based costing system.

3. Prepare a quantitative comparison of the traditional and activity-based cost assignments.

Prepare a quantitative comparison of the traditional and activity-based cost assignments. (Round your intermediate calculations to 2 decimal places and "Percentage" answers to 1 decimal place.)

In 2015, the Keenan Company paid dividends totaling $2,340,000 on net income of $13.6 million. Note that 2015 was a normal year and that for the past 10 years, earnings have grown at a constant rate of 7%. However, in 2016, earnings are expected to jump to $20.4 million and the firm expects to have profitable investment opportunities of $10.2 million. It is predicted that Keenan will not be able to maintain the 2016 level of earnings growth because the high 2016 earnings level is attributable to an exceptionally profitable new product line introduced that year. After 2016, the company will return to its previous 7% growth rate. Keenan's target capital structure is 40% debt and 60% equity.

1. Calculate Keenan's total dividends for 2016 assuming that it follows each of the following policies: (Write out your answers completely. For example, 25 million should be entered as 25,000,000.)
   1. Its 2016 dividend payment is set to force dividends to grow at the long-run growth rate in earnings. Round your answer to the nearest cent.
      $
   2. 
      
   3. It continues the 2015 dividend payout ratio. Round your answer to the nearest cent. Do not round intermediate calculations.
      $
   4. 
      
   5. It uses a pure residual dividend policy (40% of the $10.2 million investment is financed with debt and 60% with common equity). Round your answer to the nearest cent.
      $
   6. 
      
   7. It employs a regular-dividend-plus-extras policy, with the regular dividend being based on the long-run growth rate and the extra dividend being set according to the residual dividend policy. Round your answer to the nearest cent.
2. 
   
3. Which of the preceding policies would you recommend?
   -Select-Policy 1Policy 2Policy 3Policy 4Item 6
4. 
   
5. Assume that investors expect Keenan to pay total dividends of $7,000,000 in 2016 and to have the dividend grow at 7% after 2016. The stock's total market value is $200 million. What is the company's cost of equity? Round your answer to two decimal places.
   %
6. 
   
7. What is Keenan's long-run average return on equity? [Hint: g = Retention rate x ROE = (1.0 - Payout rate)(ROE).] Do not round intermediate calculations. Round your answer to two decimal places.
   %
8. 
   
9. Does a 2016 dividend of $7,000,000 seem reasonable in view of your answers to parts c and d? If not, should the dividend be higher or lower?
   -Select-YesNo, it should be lowerNo, it should be higher

The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and the standard deviation is 1.0 mmol/l. Assume that cholesterol levels are normally distributed and a random sample of 24 women are selected.

It is possible with rounding for a probability to be 0.0000.

a) Identify the individual, variable, type of variable and the random variable X in the context of this problem. The individual is

The variable information collected from each individual is Select an answer This variable is

The random variable X is as follows:

b) List the givens with the correct symbols.

? = 5.1 mmol/l

? = 1 mmol/l

? = 24

c) Identify the random variable ¯¯¯ X in the context of this problem.

d) Find the mean of the sampling distribution of the sample mean. Put the numeric value in the first box and the correct units in the second box.

e) Find the standard deviation of the sampling distribution of the sample mean. Put the numeric value rounded to two decimal places in the first box and the correct units in the second box.

f) What is the shape of the sampling distribution of the sample mean?

Why? Check all that apply:

n is less than 30 n is at least 30

population is not normal

σ is known

population is normal

σ is unknown

g) Find the probability that the sample mean cholesterol level of the 24 randomly selected women age 45-59 in Ghana, Nigeria, and Seychelles is less than 5.3 mmol/l.

Round final answer to 4 decimal places.

DO NOT use the rounded standard deviation from part e in this computation.

Use the EXACT value of the standard deviation with the square root.

h) Find the probability that the sample mean cholesterol level of the 24 randomly selected women age 45-59 in Ghana, Nigeria, and Seychelles is more than 5.64 mmol/l.

Round final answer to 4 decimal places.

DO NOT use the rounded standard deviation from part e in this computation.

Use the EXACT value of the standard deviation with the square root.

i) Is a mean cholesterol level of 5.64 mmol/l unusually high for 24 randomly selected women age 45-59 in Ghana, Nigeria, and Seychelles?

j) If you found a mean cholesterol level for a sample of 24 women age 45-59 in Ghana, Nigeria, and Seychelles as high as 5.64 mmol/l, what might you conclude?

Enteral feeding calculations

1. Calculate total calories, protein, and free water provided in the following examples.  DO NOT ROUND UP final numbers!  Show your work.

Full strength Osmolite 1.2 at 60 mls/hr x 24 hours

            Calories

            Protein:

            Free Water:

            Full strength Jevity 1.5 at 50 mL/hr x 20 hours

            Calories

            Protein

            Free water

Full strength Glucerna 1.2 at 75 mL/hr x 24 hours

            Calories

            Protein

            Water

                        Full strength Vital 1.0 at 90 mL/hr x 20 hours

            Calories

            Protein

            Water

            Mrs Jones is receiving full strength Osmolite 1.5 360 mL of formula at 0800, 1200, 1600, 2000.  She receives 30 mL of water flush before each feeding and 50 mL flush after each feeding.  Calculate how much calories, protein and free water she is receiving daily.

*Is Mrs Jones meeting the RDI for vitamins & minerals??         

            Mr Smith requires 1800 kcals, 75 g protein, and 2.4 liters of fluid daily.  Using Jevity 1.2, what would his enteral feeding prescription be for 24 hour continuous feedings.  Calculate tube feeding rate, daily kcals, protein and free water the prescription would provide.  

            FS Jevity 1.2 @ 62.5 ml/hr x 24 hours

Mr Cooper is receiving full strength Osmolite 1.5 at 50 mLs/hr x 24 hours in the hospital.  He is getting ready to go home on bolus feedings.  How much calories, protein and free water is he receiving in the hospital?  Calculate a bolus feeding regimen for Mr Cooper to follow at home that provides similar calories and protein as his hospital feeding and provides 1 mL per kcal of free water.

*Is Mr. Cooper meeting the RDI for vitamins & minerals??         

            Mrs Smith is receiving full strength Jevity 1.2 at 65 mL/hr s 24 hours in the hospital.  She is going to go home on nocturnal feedings.  Set up a feeding regimen that provides similar kcals, protein, and water over 14 hours as her hospital regimen.  Provide free water equal to 1 ml per kcal of feeding.  

*Is Mrs Smith meeting the RDI for vitamins & minerals??       

The Heaton Electronics Company produces SD memory cards in sizes ranging from 2GB to 32GB. The management team are looking at options for growing the company in the future. The company has identified three options for growth.

• Keep the product range the same but increase the factory capacity to produce more of the products
• Expand the product range to include larger memory cards (up to 124 GB)
• Invest in new technology for manufacturing cards with extremely large memory sizes.

The management team believe that the profit (after investment) over the next three years will depend on whether the demand for the larger memory card sizes grows slowly, moderately or at a rapid rate. The potential profit under each market condition is shown below

Table: Potential profit (in £millions)

Part a)

i) What is the best decision using the Maximax rule?

ii) What is the best decision using the Maximin rule?

[2 marks]

Part b)

What is the best decision using the Minimax Regret rule (show your working, include your opportunity losses in your answer)

[4 marks]

Part c)

The company decide to use a Hurwicz criterion of alpha (  ) = 0.6. Calculate the best decision using the Hurwicz criterion. (show your working in your answer)

[4 marks]

Part d)

Are the company being optimistic or pessimistic using an alpha of 0.6 for the Hurwicz criterion? Briefly explain your answer.

[2 marks]

Part e)

The company narrow down the choice to either expanding the product range or investing in new technology. Both projects generate cash flow at different stages of the project. The cash flow generated at each stage is shown below. Using a discount rate (r) of 2.5%, calculate the Net Present Value (NPV) for both projects and determine the best decision based on the NPV.

Table: Cash flow comparison for two projects

[6 marks]