By definition, each relational database table must contain exactly one candidate key.

Select one:

a. True

b. False

Values appearing in a key column must always be unique, regardless of the type of key.

Select one:

a. True

b. False

Which of the following statements about well-formed relations is FALSE?

Select one:

a. A relation is well-formed if it is in third normal form (3NF)

b. Every determinant in a well-formed relation is also a candidate key

c. Any table that meets all of the necessary criteria to be classified as a relation can be considered well-formed

d. Well-formed relations are generally not susceptible to modification anomalies

Each table in a relational database must be related to at least ________ other table(s).

Select one:

a. Zero

b. One

c. Two

d. Three

Data contained within a relational database are stored in two-dimensional ________.

Select one:

a. Folders

b. Lists

c. Catalogs

d. Tables

The asking prices in thousands of dollars for 25 single family residences listed in a city in California are given below. 370.0 269.0 290.9 398.0 326.0 218.9 249.9 239.0 498.9 334.0 288.9 324.0 328.0 300.0 361.0 294.0 319.0 330.0 366.0 339.0 310.9 294.0 270.9 349.0 326.0 (a) Locate the largest and smallest prices and use the range to approximate the standard deviation (in thousands of dollars). $ thousand (b) Calculate the sample mean x (in thousands of dollars). x = $ thousand Calculate the sample standard deviation s (in thousands of dollars). s = $ thousand Compare s with the approximation obtained in part (a). The actual value is very close to the estimate, since the difference is within 5. The actual value is close to the estimate, since the difference is between 5 and 10. The actual value is not markedly different from the estimate, since the difference is between 10 and 20. The actual value is not close to the estimate, since the difference is more than 20. (c) Find the percentage of prices that falls into the interval x ± 2s. % Compare with the corresponding percentage given by the Empirical Rule. The proportion of measurements in this interval is not close to the proportion given by the Empirical Rule, since the difference is more than 2%. The proportion of measurements in this interval is close to the proportion given by the Empirical Rule, since the difference is within 2%..

Problem 6-07

The following are monthly percentage price changes for four market indexes.

Compute the following.

1. Average monthly rate of return for each index. Round your answers to five decimal places.

   DJIA:

   S&P 500:

   Russell 2000:

   Nikkei:

2. Standard deviation for each index. Do not round intermediate calculations. Round your answers to four decimal places.

   DJIA:

   S&P 500:

   Russell 2000:

   Nikkei:

3. Covariance between the rates of return for the following indexes. Use a minus sign to enter negative values, if any. Do not round intermediate calculations. Round your answers to six decimal places.

   Covariance (DJIA, S&P 500):

   Covariance (S&P 500, Russell 2000):

   Covariance (S&P 500, Nikkei):

   Covariance (Russell 2000, Nikkei):

4. The correlation coefficients for the same four combinations. Use a minus sign to enter negative values, if any. Do not round intermediate calculations. Round your answers to four decimal places.

   Correlation (DJIA, S&P 500):

   Correlation (S&P 500, Russell 2000):

   Correlation (S&P 500, Nikkei):

   Correlation (Russell 2000, Nikkei):

5. Using the unrounded answers from parts (a), (b), and (d), calculate the expected return and standard deviation of a portfolio consisting of equal parts of (1) the S&P and the Russell 2000 and (2) the S&P and the Nikkei. Do not round intermediate calculations. Round your answers to five decimal places.

   Expected return (S&P 500 and Russell 2000):

   Standard deviation (S&P 500 and Russell 2000):

   Expected return (S&P 500 and Nikkei):

   Standard deviation (S&P 500 and Nikkei):

   Since S&P 500 and Russell 2000 have a strong -Select-negativepositive correlation, meaningful reduction in risk -Select-is not observedis observed if they are combined.

   Since S&P 500 and Nikkei have a strong -Select-negativepositive correlation, meaningful reduction in risk -Select-is not observedis observed if they are combined.

Problem 6-07

The following are monthly percentage price changes for four market indexes.

Compute the following.

1. Average monthly rate of return for each index. Round your answers to five decimal places.

   DJIA:

   S&P 500:

   Russell 2000:

   Nikkei:

2. Standard deviation for each index. Do not round intermediate calculations. Round your answers to four decimal places.

   DJIA:

   S&P 500:

   Russell 2000:

   Nikkei:

3. Covariance between the rates of return for the following indexes. Use a minus sign to enter negative values, if any. Do not round intermediate calculations. Round your answers to six decimal places.

   Covariance (DJIA, S&P 500):

   Covariance (S&P 500, Russell 2000):

   Covariance (S&P 500, Nikkei):

   Covariance (Russell 2000, Nikkei):

4. The correlation coefficients for the same four combinations. Use a minus sign to enter negative values, if any. Do not round intermediate calculations. Round your answers to four decimal places.

   Correlation (DJIA, S&P 500):

   Correlation (S&P 500, Russell 2000):

   Correlation (S&P 500, Nikkei):

   Correlation (Russell 2000, Nikkei):

5. Using the unrounded answers from parts (a), (b), and (d), calculate the expected return and standard deviation of a portfolio consisting of equal parts of (1) the S&P and the Russell 2000 and (2) the S&P and the Nikkei. Do not round intermediate calculations. Round your answers to five decimal places.

   Expected return (S&P 500 and Russell 2000):

   Standard deviation (S&P 500 and Russell 2000):

   Expected return (S&P 500 and Nikkei):

   Standard deviation (S&P 500 and Nikkei):

   Since S&P 500 and Russell 2000 have a strong (Select-negative, positive) correlation, meaningful reduction in risk (Select-is not observed, is observed) if they are combined.

   Since S&P 500 and Nikkei have a strong (Select-negative, positive) correlation, meaningful reduction in risk (Select-is not observed, is observed) if they are combined.

Discuss for and against compensating victims of medical injuries via tort liability. What does the question above mean and paragraphs to include in an 2000 word essay. The 2000 word is mandatory

craft corp's production function is given by q = 5min(K, 2L), where q is the quantity produced and K and L are the amounts of capital and labor input. Input prices are r = 2 and w = 6.

a) find the long run cost function

b) draw the isoquants and isocost and show the equilibrium when q = 2000. what is the total cost to produce q = 2000? what is the labor cost to produce q = 2000? what is the capital cost to produce q = 2000?

c) supposed in the short run K is fixed @ 20. find the short run cost function. represent the short-run and long-run cost functions in a diagram together.

Caspian Sea Drinks is considering buying the J-Mix 2000. It will allow them to make and sell more product. The machine cost $1.78 million and create incremental cash flows of $820,427.00 each year for the next five years. The cost of capital is 10.84%. What is the net present value of the J-Mix 2000?

Caspian Sea Drinks is considering buying the J-Mix 2000. It will allow them to make and sell more product. The machine cost $1.61 million and create incremental cash flows of $540,694.00 each year for the next five years. The cost of capital is 10.41%. What is the internal rate of return for the J-Mix 2000?

Q7. General Electric Corp. (GE) paid cash dividends totaling $0.57 per share in 2000. Over the previous three years, GE's dividends grew at an annual rate of 15.4 per-cent. Assume that this growth rate will continue for five more years, after which dividend growth will revert to a normal annual rate of 8 percent into perpetuity. Also assume that the appropriate discount rate for GE is 11 percent. a. Compute the value of GE's stock at year-end 2000. b. The actual price of GE stock at year-end 2000 was $47.9375. Comparing this price to your calculation of GE's value in (a), was GE overpriced or underpriced at year-end 2000?