In a random sample of 35 ​refrigerators, the mean repair cost was ​$141.00 and the population standard deviation is ​$19.10. A 95​% confidence interval for the population mean repair cost is left parenthesis 134.67 comma 147.33 right parenthesis. Change the sample size to nequals70. Construct a 95​% confidence interval for the population mean repair cost. Which confidence interval is​ wider? Explain. Construct a 95​% confidence interval for the population mean repair cost. The 95​% confidence interval is ​( ​, ​). ​(Round to two decimal places as​ needed.)

Calexico Hospital plans to invest in a new MRI machine. The cost of the MRI is $1.4 million. The MRI has an economic life of 5 years, and it will be depreciated over a five-year life to a $200,000 salvage value. Additional revenues attributed to the new MRI will be in the amount of $1.5 million per year for 5 years. Additional operating expenses, excluding depreciation expense, will amount to $1 million per year for 5 years. Over the life of the machine, net working capital will increase by $30,000 per year for 5 years. Version 1 a. Assuming that the hospital is a non-profit entity, what is the project’s net present value (NPV) at a discount rate of 8%, and what is the project’s IRR? b. Assuming that the hospital is a for-profit entity and the tax rate is 30%, what is the project’s NPV at a cost of capital of 8%, and what is the project’s IRR? I need help getting the excel calculations correct.

The cost of equipment purchased by Bramble, Inc., on June 1, 2020, is $92,400. It is estimated that the machine will have a $8,400 salvage value at the end of its service life. Its service life is estimated at 7 years, its total working hours are estimated at 42,000, and its total production is estimated at 600,000 units. During 2020, the machine was operated 6,900 hours and produced 63,200 units. During 2021, the machine was operated 6,320 hours and produced 55,200 units.

Compute depreciation expense on the machine for the year ending December 31, 2020, and the year ending December 31, 2021, using the following methods. (Round depreciation per unit to 2 decimal places, e.g. 15.25 and final answers to 0 decimal places, e.g. 45,892.)

Question 1 A contractor is interested in the total cost of a project for which he intends to bid. He estimates that materials will cost P25000 and that his labour will cost P900 per day. The contractor then formulates the probability distribution for completion time (X), in days, as given in the following table. Completion time in days (X) 10 11 12 13 14 P(X=x) 0.1 0.3 0.3 0.2 0.1 a) Determine the total cost function C for the project. b) Find the mean and variance for completion time X. c) Find the mean, variance and standard deviation for the total cost C.

A carbon tax makes the individuals and firms to pay for the full social cost of carbon pollution. Do you think the carbon tax is a good policy to reduce greenhouse gas emissions in Australia? Why or why not? Whenever appropriate, you should supplement your answers with suitable diagrams. (Hint: What are the pros and cons of a carbon tax?

how to draw a diagram????????

Briefly comment on the general nature of the cost structure of programme production in terms of extent/distribution of fixed cost and marginal cost. Given this type of cost structure, would there be economies or diseconomies of scale in programme production? In what way can this explain the higher fees of Hong Kong TV stars paid by the mainland production companies?

The Greek Connection had sales of

$ 29.9

million and a cost of goods sold of

$ 12.0

million in 2013. A simplified balance sheet for the firm appears? below:

a. Calculate The Greek? Connection's net working capital in 2013.

b. Calculate the cash conversion cycle of The Greek Connection in 2013.

c. The industry average accounts receivable days is 30 days. What would have been the cash conversion cycle for The Greek Connection in 2013 had it met the industry average for accounts receivable? days? (Hint: Use a ? 365-day year.)

Multiple regression is used by accountants in cost analysis to shed light on the factors that cause costs to be incurred and the magnitudes of their effects.

A petroleum company wanted to evaluate different blends of its gasoline - made by inserting different additives into the manufacturing process. To test this the firm acquired thirty identical cars (make and model) from an auto company and randomly assigned the cars to one of the three blends. The cars were then driven for 30 eight hour days on a dynamometer simulating city and highway driving conditions and the mileage obtained (MPG) was measured at the conclusion of the study. The results are below and require analysis to obtain a decision as to whether one of the blends or more was superior to the others.

Gasoline Blends