Sheila's measured glucose level one hour after a sugary drink varies according to the Normal distribution with μμ = 130 mg/dl and σσ = 15 mg/dl. What is the level L such that there is probability only 0.15 that the mean glucose level of 4 test results falls above L?

L=

A study of the career paths of hotel general managers sent questionnaires to an SRS of 210 hotels belonging to major U.S. hotel chains. There were 88 responses. The average time these 88 general managers had spent with their current company was 12.7 years. (Take it as known that the standard deviation of time with the company for all general managers is 3.6 years.)

(a) Find the margin of error for an 85% confidence interval to estimate the mean time a general manager had spent with their current company:  years

(b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company:  years

(c) In general, increasing the confidence level  the margin of error (width) of the confidence interval. (Enter: ''DECREASES'', ''DOES NOT CHANGE'' or ''INCREASES'', without the quotes.)

I have several data sets or whatever they are called/data in 60 piece segments. 1-60 number of restaurants, and then that many monthly profit total figures, monthly advertising expenses monthly, and student population near each store. I need to make two accurate and effective bar charts to display the correlation of profit/advertising expense per month on one and profit/student population on the other. How do I do this?

I have to make the frequency or something? I tried and Excel frequency function did not work for me. I need to make bins and separate data or something so can have the rght info to make the bar charts? I know the basics if can explain it please. thank you!

c) Define the measurement system specifications to meet the above application requirements

d) Develop a feasible design: draw the measurement system block diagram and describe the function of all needed subsystems

Fill in blank space with the following words:

Black Hole

Law of Universal Gravitation

Efficiency

Power

Weight

Rotational Speed

Torque

1. A concentrated mass resulting from gravitational collapse near which gravity is so strong not even light can escape is called a                      ].
2. The ratio of the output energy for a machine to the total input energy is called the                        of the machine.
3. “For any pair of objects, each body attracts the other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers of mass.” This is a statement of                              .
4.                     is the rate at which work is done or energy is transformed: work/time.
5.                     is the number of rotations per unit time.
6. The product of the force and the lever arm on a body which imparts a rotational acceleration on the object is called               .

7. The force of an object on a surface, usually due to gravity, is called

The table sets out Sue’s Surfboards’ total product schedule.

             Labor                                     Output

      (workers per week)                (surfboards per week)

               1                                        30

               2                                        70

               3                                       120

               4                                       160

               5                                       190

               6                                       210

               7                                       220

(a). Draw the total product curve.
Calculate the average product of labor and draw the average product curve. Calculate the marginal product of labor and draw the marginal product curve.

(b). Sue’s Surfboards, in Problem 3, hires workers at $500 a week and its total fixed cost is $1,000 a week.

(i). Calculate total cost, total variable cost, and total fixed cost of each output in the table. Plot these

points and sketch the short-run total cost curves passing through them.

(ii). Calculate average total cost, average fixed cost, average variable cost, and marginal cost of each output in the table. Plot these points and sketch the short-run average and marginal cost curves passing through them.

A firm produces a product with labor and capital as inputs. Its production function is described by Q(L,K) = L^1/2 K^1/2. Let w and r be the prices of labor and capital, respectively.

a. Derive the firm’s long-run total cost and long-run marginal cost functions.

b. Assume capital is fixed at 4 units in the short-run and derive the firm’s short-run total cost and short-run average variable cost functions.  

c. Rewrite your short-run and long-run total cost functions (for the grader) and then graphically depict both on the same graph.

d. In general, how do the long-run total cost and short-run total cost of producing each level of output compare? Explain when and why the short-run total cost would equal the long-run total cost.

Study a consumer product that your group might consider buying. Select a flatscreen TV, home theater system, computer, digital camera, espresso machine, car, SUV, hot tub, or some other product. Next, research the product as described in Chapter 10. Use at least five primary and five secondary sources in researching your topic. Your primary research will be in the form of interviews with individuals (owners, users, salespeople, technicians) in a position to comment on attributes of your product. Your secondary research will be in the form of print or electronic sources, such as magazine articles, owner manuals, and Web sites. Be sure to use electronic databases and the Web to find appropriate articles.

Your report should analyze and discuss at least three comparable models or versions of the target product. Decide what criteria you will use to compare the models, such as price, features, warranty, service, and so forth. The report should include these components: letter of transmittal, table of contents, executive summary, introduction (including background, purpose, scope of the study, and research methods), findings (organized by comparison criteria), summary of findings, conclusions, recommendations, and bibliography.

Lavado Rapido is a Mexican company that owns and operates a large automatic car wash facility near Mexico City. The following table provides data concerning the company’s costs:

[Fixed Cost per Month] [Cost per Car Washed]

Cleaning supplies $1.10

Electricity $1,500 $0.20

Maintenance $0.35

Wages and salaries $6,500 $0.80

Depreciation $6,000

Rent $9,500

Administrative expenses $3,500 $0.20

The company actually washed 10,000 cars in October and expected to collect an average of $5.50 per car washed. The company reported the following actual results.

Actual Results

Revenue 75,000

Cleaning Supplies 12,000

Electricity 3,000

Maintenance 4,500

Wages and salaries 16,500

Depreciation 6,000

Rent 9,500

Administrative Expenses 7,800

Required: Prepare the company’s flexible budget and variances for October.

This is all the information I was given, I wasn't given a planned wash amount.

Exercise 9-12 Activity Variances [LO9-2]

Lavage Rapide is a Canadian company that owns and operates a large automatic car wash facility near Montreal. The following table provides data concerning the company’s costs:

For example, electricity costs are $1,000 per month plus $0.10 per car washed. The company expects to wash 8,200 cars in August and to collect an average of $6.90 per car washed. The company actually washed 8,300 cars in August.

Required:

Calculate the company's activity variances for August. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.)

Prem Narayan, a graduate student in engineering, to market a radical new speaker he had designed for automobile sound systems, founded Acoustic Concepts, Inc. Prem established the company’s headquarters into rented quarters in a nearby industrial park. He hired a receptionist, an accountant, a sales manager, and a small sales staff to sell the speakers to retail stores. Prem asked his accountant, Bob Luchinni, to prepare several cost-volume-profit analyses, using the information shown below.

Sales price for one speaker set................................................... $250 Variable manufacturing cost for each speaker set (direct
materials) ................................................................................... $150 Fixed expenses per month (rent, salaries of receptionist, sales

people, accountant, and Prem)................................................... $35,000 Number of speaker sets sold per month..................................... 400

Based on the above information, how many stereo speaker sets will need to be sold for Acoustic Concepts, Inc., to break even for one month?

Based on the above information, how many stereo speaker sets will need to be sold for Acoustic Concepts, Inc., to earn a $1,000 profit for one month?

What will be the net income or net loss for one month if 400 speaker sets are sold? How about if 425 speakers are sold?

The sales manager feels that a $10,000 increase in monthly advertising will increase monthly sales by $30,000. Would you recommend increasing the advertising budget?

Prem and other management personnel are considering the use of higher-quality components, which would increase variable costs by $10 per speaker. However, the sales manager predicts that the higher overall quality would increase sales to 480 speaker sets per month. Should the higher quality components be used?

The sales manager believes that by reducing the selling price of speakers by $20, and also by increasing the advertising budget by $15,000 per month, that sales will increase to 600 speaker sets per month. Should the changes be made?

The sales manager would like to place the sales staff on a commission basis of $15 per speaker sold, rather than on flat salaries that now total $6,000 per month. The sales manager is confident that the change will increase monthly sales to 460 speaker sets per month. Should the change be made?

Suppose Acoustic Concepts has an opportunity to make a bulk sale of 150 speakers to a wholesaler, if an acceptable price can be worked out. The sale would not disturb the company’s regular sales, nor would if affect fixed operating costs per month. What price should be quoted to the wholesaler if Acoustic Concepts wants to increase its monthly profits by $3,000?

 C.M.=contribution margin, S.P.=sales price, V.C.=variable cost, F.C.=fixed cost

 C.M. per unit = S.P. per unit – V.C. per unit

 The break even point is the point at which the total contribution margin equals fixed costs.

 Break even units sold = F.C. / C.M. Per unit

 Break even sales dollars = F.C. / C.M. Percentage

 C.M. Percentage = C.M. per unit / S.P. per unit, or C.M. (total) / Sales (total)