1. For the following experimental designs, indicate whether independent-samples or paired-samples t-test is appropriate:

a) Weight is obtained for each subject before and after Dr. Nogani's new treatment. The hypothesis to be tested is that the treatment has no effect on weight loss.

b) Elephants are randomly selected from a jungle and Trunkgrol is administered to one group of elephants and Trunkgro2 to the other. The hypothesis to be tested is that both agents are equally effective in promoting trunk growth.

A composition teacher wishes to see whether a new grammar program will reduce the number of grammatical errors her student make when writing an essay. the data are shown below. At a=0.05 can it be concluded that the number of errors has been reduced?

Student- 1, 2, 3, 4, 5, 6,

Errors before- 12 9 0 5 4 3

Errors after - 9 6 1 1 2 5

A pizza pan is removed at 4:00 PM from an oven whose temperature is fixed at 450 degrees F into a room that is a constant 74 degrees F. After 5​ minutes, the pizza pan is at 300 degrees F.

a. At what time is the temperature of the pan 125 Degrees F

b. Determine the time that needs to elapse before the pan is 200 Degrees F

c. What do you notice about the temperature as time passes?

Multi-wells are used for dewatering at an excavation site. The dimension of the excavation pit is 150 m × 200 m. The height of the phreatic level above the impermeable layer before pumping is 15 m. The height of the phreatic level at the center of excavation pit after pumping is 6 m. The soil permeability k = 2.3×10-5 m/s. The wells have a diameter of 200 mm. Determine the number of wells required for this dewatering project

Question 2 – Government Intervention as Natural Monopoly Regulation

Sometimes governments intervene with the markets; the reason for the intervention might be a concern about allocative efficiency, or production inefficiency or some “fairness” issue.

Your task here is to explain the motivation for government allowing only a single firm in naturally monopolistic industries and yet later regulating the price of this firm. Analyze the situation before and after government intervention, and then conclude by referring to the possible reason for intervention.

Wandel Inc. has forecasted sales of $300,000. The firm's fixed operating costs total $75,000 and its variable operating costs are equal to 70% of this sales level. The company needs to pay $12,000 in interest each period. Its tax rate is 40% and it has 10,000 shares.

a) Compute the earnings before interest and taxes (EBIT) for a sales level of $300,000

b) Compute Earnings after taxes and compute the EPS for that sales level.

Jen, Raks, and Fred are partners with average capital balances during 2019 of P945,000, P477,300, and P324,700, respectively. The partners receive 10% interest on their average capital balances; after deducting salaries of P244,650 to Jen and P165,250 to Fred, the residual profits or loss is divided equally. In 2019, the partnership had a net loss of P251,248 before the interest and salaries to partners. By what amount should Jen’s and Fred’s capital account change – increase (decrease)?

Corp X has a patent with a book value of $4,000. Before its pending litigation, the company assumed a 3-year useful life of this patent with annual cash inflows of $3,000. After a judge awarded the company a decision defending its patent, the company new expectations increased the useful life of the patent to 5 years, its cash flow to $4,000 a year.

Please provide the accounting issues and how the company should account for this?

In the Meselson - Stahl experiment, if after the first round of replication, the DNA had been denatured at high temperature before its centrifugation in a column of cesium chloride, which two models would have shown the same sedimentation pattern?

Group of answer choices

semiconservative and dispersive

conservative and dispersive

all three would have shown the same sedimentation pattern

semiconservative and conservative

none of the three would have had the same sedimentation pattern