Question The distribution of course grades in a very large class is (approximately) Normal with mean 49 and standard deviation 11. The minimum possible grade is 0 and the maximum possible grade is 120 . The course instructor is considering the possibility of a "bell curve" that will increase the mean grade to 62 and decrease the standard deviation to 9 . Suppose the bell curve is applied and Zeus' grade increases by 10 marks. What is Zeus' original grade? \( Z \) table: \( P(Z \leq z) \) (You do not have to interpolate.) The distribution of course grades in a very large class is (approximately) Normal with mean 49 and standard deviation 11. The minimum possible grade is 0 and the maximum possible grade is 120 . The course instructor is considering the possibility of a "bell curve" that will increase the mean grade to 62 and decrease the standard deviation to 9 . Suppose the bell curve is applied and Zeus' grade increases by 10 marks. What is Zeus' original grade? \( Z \) table: \( P(Z \leq z) \) (You do not have to interpolate.)

Revision question Waterpark plc is a company engaging in theme park activities and operates in Belle Mare. The company is considering the construction of another theme park near Bagatelle. The new theme park would have a mixture of family activities and adventure rides. Waterpark has just spent Rs500,000 on market research into the demand for theme park activities around Bagatelle, and is encouraged by the findings. The theme park is expected to attract an average of 1,500 visitors per day for at least four years, after which major new investment would be required in order to maintain demand. The price of admission to the theme park is expected to be Rs180 per adult and Rs100 per child. 60% of visitors are forecast to be children. In addition to admission revenues, it is expected that the average visitor will spend Rs80 on food and drinks, (of which 30% is profit), and Rs50 on gifts and souvenirs, (of which 40% is profit). The park would open for 360 days per year. Except for maintenance, construction costs and the realizable value of theme park equipment, all other costs and receipts are shown at current prices and are expected to rise by 3% per year from current values. The theme park would cost a total of Rs250 million. This would be financed by existing company funds. It will take one year before the construction is fully complete. The park would become operational at the start of year 2. Half of the Rs250 million would be payable immediately, and half in one year’s time. In addition a working capital of Rs50 million will be required from the end of year one. The realisable value of fixed assets is expected to be Rs357.14 million after four years of operation. Maintenance costs (excluding labour) are expected to be Rs15 million in the first year of operation, increasing by Rs4 million per year thereafter. Annual insurance costs are Rs2 million, and the company would apportion Rs2.5 million per year to the theme park from existing overheads. The theme park would require 1,500 staff costing a total of Rs40 million per annum (at current prices). Waterpark plc is quoted on the Stock exchange of Mauritius (SEM) and its beta equity is 2.5. The current yield on treasury bills (a risk free asset) is 2.5% per annum. The company’s beta debt is 0.63. The company’s target equity weight is 80%. The return on the SEMDEX ( the index of all shares quoted on the SEM) has averaged 6.5% per annum over the last 5 years. Required: a) Prepare a sheet showing the free cash flows generated by the theme park project. b) Compute the weighted average cost of capital (WACC) of the Bagatelle theme park project. c) Compute the NPV of the Bagatelle theme park project. d) Compute the return on investment per annum of the Bagatelle theme park project. e) Comment on your results and evaluate whether the Bagatelle theme park project should go ahead.

Drop down choices for both a. and b. -cost-push inflation -a change in inflation expectations -demand-pull inflation The Phillips Curve and Inflation - End of Chapter Problem For each scenario, determine whether inflation expectations, demand-pull inflation, or cost-push inflation will change. a. A rapid influx of foreign investment causes the output gap to become more positive. This gives rise to b. The president unexpectedly announces a tariff on aluminum and steel. This causes

CIRCLE ALL ANSWERS AND PROVIDE UNITS 1. (20 points) Mohr's Circle and Stress Elements Oy An element in plane stress (shown above) is subjected to stresses Ox - 70 MPa, Oy, and Txy - 50 MPa. Using the Mohr's Circle equations, determine the following: a principal stresses, b. the maximum shear stress, C. the principal angle, d. If one of the principal stresses is negative, what does a negative stress mean? **Using just proper equations is acceptable, but Extra Credit will be given if Mohr's Circle is drawn out.

You make a swimming pool 3.92 M in magnesium acetate, Mg(CH3COO)2 hoping to keep it from freezing during the winter. Its density is 1.23 g/ml. What will its normal freezing point be? Give your final answer (remember, you're looking for the new normal freezing point) to 1 decimal place (just to keep CuLearn happy) Put C for your unit (I don't know how to find the degree sign for answers...) Kf(H2O) = 1.86 °C/m

Consider the beam shown in (Figure 1). Suppose that d = 3 m Figure < 1 of 1 w - (***) kN/m d Part A Determine the equivalent resultant force. Express your answer to three significant figures and include the appropriate units. Enter positive value if the force is upward and negative value if the force is downward. HÅ ? FR = Value Units Submit Request Answer Part B Determine the equivalent couple moment at point O. Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise. HÅ ? (MR) - Value Units Submit Request Answer

1)A uniform magnetic field is given byB⃗ =btk^, where b= 0.40 T/s. Find the current in a conducting loop with area 280 cm2and resistance 0.20 Ωthat lies in the x-y plane.Express your answer in amperes.2) When a nonideal 1.4-H inductor is short-circuited, itsmagnetic energy drops to one-fourth of its original value in 3.8s.What is its resistance?Express your answer in milliohms.