On May 7, Roy, a minor, a resident of Smithton, purchased an automobile from Royal Motors, Inc., for $18,750 in cash. On the same day, he bought a motor scooter from Marks, also a minor, for $750 and paid him in full. On June 5, two days before attaining his majority, Roy disaffirmed the contracts and offered to return the car and the motor scooter to the respective sellers. Royal Motors and Marks each refused the offers. On June 16, Roy brought separate appropriate actions against Royal Motors and Marks to recover the purchase price of the car and the motor scooter. By agreement on July 30, Royal Motors accepted the automobile. Royal then filed a counterclaim against Roy for the reasonable rental value of the car between June 5 and July 30. The car was not damaged during this period. Royal knew that Roy lived twenty-five miles from his place of employment in Smithton and that he would probably drive the car, as he did, to provide himself transportation. Decision as to

1. Roy's action against Royal Motors, Inc., and its counterclaim against Roy; and

2. Roy's action against Marks?

To illustrate the effects of driving under the influence (DUI) of alcohol, a police officer brought a DUI simulator to a local high school. Student reaction time in an emergency was measured with unimpaired vision and also while wearing a pair of special goggles to simulate the effects of alcohol on vision. For a random sample of nine teenagers, the time (in seconds) required to bring the vehicle to a stop from a speed of 60 miles per hour was recorded.

Note: A normal probability plot and boxplot of the data indicate that the differences are approximately normally distributed with no outliers.

Whether the student had unimpaired vision or wore goggles first was randomly selected. Why is this a good idea in designing the experiment? (b) Use a 95% confidence interval to test if there is a difference in braking time with impaired vision and normal vision where the differences are computed as "impaired minus normal." State the appropriate conclusion.

Subject Normal,Xi Impaired, Yi

1 4.49 5.86

2 4.24 5.67

3 4.58 5.51

4 4.56 5.29

5 4.31 5.90

6 4.80 5.49

7 4.59 5.23

8 5.00 5.61

9 4.79 5.63

The Fresh Detergent Case

Enterprise Industries produces Fresh, a brand of liquid detergent. In order to more effectively manage its inventory, the company would like to better predict demand for Fresh. To develop a prediction model, the company has gathered data concerning demand for Fresh over the last 33 sales periods. Each sales period is defined as one month. The variables are as follows:

Demand = Y = demand for a large size bottle of Fresh (in 100,000)

Price = the price of Fresh as offered by Ent. Industries

AIP = the average industry price

ADV = Ent. Industries Advertising Expenditure (in $100,000) to Promote Fresh in the sales period.

DIFF = AIP - Price = the "price difference" in the sales period

Question:

1. Obtain the correlation matrix for all six variables and list the variables that have strong correlation with Demand. High correlation is r > 0.50. Explain your findings in plain language.

On November 14, Thorogood Enterprises announced that the public and acrimonious battle with its current CEO had been resolved. Under the terms of the deal, the CEO would step down from his position immediately. In exchange, he was given a generous severance package. Given the information below, calculate the cumulative abnormal return (CAR) around this announcement. Assume the company has an expected return equal to the market return. (A negative value should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations. Round your answers to 1 decimal place.)

A fresh zinc-air cell is weighed on an analytical balance before being placed in a hearing aid for use. (i) Asthecelloperates,doesthemassofthecellincrease,decrease,orremainthesame? (ii) Justify your answer to part (b)(i) in terms of the equation for the overall cell reaction. (c) The zinc-air cell is taken to the top of a mountain where the air pressure is lower. (i) Willthecellpotentialbehigher,lower,orthesameasthecellpotentialatthelowerelevation? (ii) Justify your answer to part (c)(i) based on the equation for the overall cell reaction and the information above. (d) Metal-air cells need to be lightweight for many applications. In order to transfer more electrons with a smaller mass, Na and Ca are investigated as potential anodes. A 1.0 g anode of which of these metals would transfer more electrons, assuming that the anode is totally consumed during the lifetime of a cell? Justify your answer with calculations. (e) The only common oxide of zinc has the formula ZnO. (i) Write the electron configuration for a Zn atom in the ground state. (ii) From which sublevel are electrons removed when a Zn atom in the ground state is oxidized?

1. What minimum concentration of Sn2+ would be necessary to make the following reaction spontaneous at 25°C if [Pb2+] = 1.0 M?

Pb(s) + Sn2+(aq) → Pb2+(aq) + Sn(s)

1.1 M

0.46 M

2.2 M

1.5 M

0.68 M

2. A spoon was silver-plated electrolytically in a AgNO3 solution. If 0.750 g of Ag was deposited on the spoon at a constant current of 20.0 mA, how long (in hours) did the electrolysis take? (1 mA = 1x10–3 A)

Iconic memory is a type of memory that holds visual information for about half a second (0.5 seconds). To demonstrate this type of memory, participants were shown three rows of four letters for 50 milliseconds. They were then asked to recall as many letters as possible, with a 0-, 0.5-, or 1.0-second delay before responding. Researchers hypothesized that longer delays would result in poorer recall. The number of letters correctly recalled is given in the table.

(a) Complete the F-table. (Round your values for MS and F to two decimal places.)

b) Compute Tukey's HSD post hoc test and interpret the results. (Assume alpha equal to 0.05. Round your answer to two decimal places.)

The critical value is _____ for each pairwise comparison.

1. An economy has a monetary base of 1,300 $1 bills. Calculate the money supply in the following scenarios. (Note: use the identity M = C + D for (i), and the full money multiplier equation for the rest.)
   1. All money is held as currency.
   2. All money is held as demand deposits. Banks hold 100 percent of deposits as reserves.
   3. All money is held as demand deposits. Banks hold 5 percent of deposits as reserves.
   4. People hold equal amounts of currency and demand deposits. Banks hold 5 percent of deposits as reserves.
2. Explain how each of the following events, ceteris paribus, affects the monetary base, the money multiplier, and the money supply.
   1. The Fed buys bonds in an open-market operation.
   2. The Fed increases the interest it pays banks for holding reserves.
   3. Rumors about a computer virus attack on ATMs increase the amount of money people hold as currency rather than demand deposits.
3. By the end of December 2008, the money multiplier fell below 1.0 for the first time in history. Does this change the effect of increasing the currency-deposit ratio? Explain.

Could you explain these:

2. Which piece of laboratory equipment should be used to deliver a 10.00 mL sample of acid from a stock container to a flask for a titration? (A) 1.0 mL Beral pipet used 10 times (B) 10 mL graduated cylinder (C) 10 mL volumetric pipet (D) 25 mL beaker

2) C For this one, in general what do you use all the options for? There was another question like this in which the answer was to use a buret, but isn't a buret used only for titrations?

6. 30.0 mL of 0.10 M Ca(NO3)2 and 15.0 mL of 0.20 M Na3PO4 solutions are mixed. After the reaction is complete, which of these ions has the lowest concentration in the final solution? (A) Na+ (B) NO3 – (C) Ca2+ (D) PO4 3–

6) C No clue on this one

46. Which gas-phase atom has no unpaired electrons in its ground state? (A) Li (B) Be (C) B (D) C

46) B but doesn't carbon also have unpaired electrons?