A school district is deciding whether or not to adopt a new social skills curriculum. Three classrooms are randomly selected as test sites for the curriculum. To obtain a measure of student improvement, students in the three classrooms are tested on their social skills before and after the curriculum is implemented. The social skills test has 25 possible points. The post-implementation scores for the students in the first classroom are shown in the following table: 22 21 16 18 15 23 17 24 20 19 22 11 Calculate the sample size, n; the total sum, ΣX; and the sample mean, M.
n =
ΣX =
M =
The school district decides it will be easier to understand the scores if they are converted to a 10-point scale. This requires that each score be divided by 2.50.
Calculate the new n, ΣX, and M.
n =
ΣX =
M =

Which of the following housing decisions provides a person with both housing and an investment? a. selling a share in a cooperative. b. buying a single-family home. c. renting an apartment. d. subletting a condominium. 2b2t

Shrieves casting company is considering adding a new line to its product mix, and the capital budgeting analysis is being conducted by sidney johnson, a recently graduated mba. the production line would be set up in unused space in the main plant. the machinery’s invoice price would be approximately $200,000, another $10,000 in shipping charges would be required, and it would cost an additional $30,000 to install the equipment. the machinery has an economic life of 4 years, and shrieves has obtained a special tax ruling that places the equipment in the macrs 3-year class. the machinery is expected to have a salvage value of $25,000 after 4 years of use. the new line would generate incremental sales of 1,250 units per year for 4 years at an incremental cost of $100 per unit in the first year, excluding depreciation. each unit can be sold for $200 in the first year. the sales price and cost are both expected to increase by 3% per year due to inflation. further, to handle the new line, the firm’s net working capital would have to increase by an amount equal to 12% of sales revenues. the firm’s tax rate is 40%, and its overall weighted average cost of capital, which is the risk-adjusted cost of capital for an average project (r), is 10%. define “incremental cash flow.” (1) should you subtract interest expense or dividends when calculating project cash flow?

After much consideration, you have chosen cancun over ft. lauderdale as your spring break destination this year. however, spring break is still months away, and you may reverse this decision. which of the following events would prompt you to reverse this decision? a. the marginal cost of going to cancun decreases.b. the marginal cost of going to ft. lauderdale decreases.c. the marginal benefit of going to cancun increases.d. the marginal benefit of going to ft. lauderdale decreases.