Reference no: EM13928235
Chapter 1
1. An example of a quantitative variable is the telephone number of an individual.
2. If we examine some of the population measurements, we are conducting a Sample of the population.
3. An example of a nominal scale variable is the make of a car.
4. Credit score is an example of a ratio scale variable.
5. Temperature is an example of an interval scale variable.
6. The number of people eating at a local café between noon and 2:00 p.m. is an example of a discrete variable.
Chapter2
7. The relative frequency for a class is the frequency of the class divided by the number of classes.
8. When we wish to summarize the proportion (or fraction) of items in a class we use the relative frequency for that class.
9. When establishing the classes for a frequency table it is generally agreed that the more classes you use the better your frequency table will be.
10. The cumulative distribution function is initially increasing then decreasing.
11. A Histogram is a graphic that is used to depict qualitative data.
Chapter 3
12. The Median is the measure of central tendency that divides a population or sample into two equal parts.
13. If there are 7 classes in a frequency distribution then the fourth class necessarily contains the median.
14. The sum of deviations from the mean must be zero.
15. The median is said to be less sensitive to extreme values.
16. The Empirical Rule is used to describe a population that is highly skewed.
Chapter 1
1. Ratio variables have the following unique characteristic:
A. Meaningful order
B. An inherently defined zero value
C. Categorical in nature
D. Predictable
2. Which of the following is a quantitative variable?
A. The make of a TV
B. The VIN of a car
C. The price of a TV
D. The rank of a police officer
E. The Driver's License Number
3. Which of the following is a categorical or Nominal variable?
A. Air Temperature
B. Bank Account Balance
C. Daily Sales in a Store
D. The Social Security Number of a person
E. Value of Company Stock
4. Which of the following is not a typical use of inferential statistics?
A. Develop forecasts
B. Summarize data
C. Estimate relationships
D. Test assumptions
5. The level of Satisfaction in a Consumer survey would represent a(n) ____________ level of measurement.
A. Nominative
B. Ordinal
C. Interval
D. Ratio
Chapter 2
6. A(n) ______ is a graph of a cumulative distribution.
A. Histogram
B. Bar Chart
C. Ogive plot
D. Pie Chart
7. When developing a frequency distribution the class (group), intervals must be
A. Large
B. Small
C. Whole numbers
D. Mutually exclusive
E. Equal
Although having equal intervals (or nearly equal intervals) is generally desirable, it is not necessary and not even appropriate in some applications. For example, in Income distribution the classes are arbitrarily formed and are generally unequal. Similarly many distributions have the lowest and/or highest class with open bounds which make these class intervals different from other classes.
8. If there are 60 values in a data set, how many classes should be created for a frequency histogram?
A. 4
B. 5
C. 6
D. 7
E. 8
Just apply the 2k rule for question 8.
9. Consider the following frequency distribution from Excel. What is the missing value?
Bin Frequency Cumulative %
584 1 4.00%
1774.4 64.00%
2964.8 4 80.00%
4155.2 3 92.00%
5345.6 1 96.00%
More 1 100.00%
A. 3
B. 10
C. 15
D. 16
E. 25
10. A company collected the ages from a random sample of its middle managers with the resulting frequency distribution shown below:
Class Interval Frequency
20 to 25 8
25 to 30 12
30 to 35 28
35 to 40 20
40 to 45 6
45 to 50 6
|
Maker of telecommunications equipment
: FarCry Industries, a maker of telecommunications equipment, has 5 million shares of common stock outstanding, 2 million shares of preferred stock outstanding, and 20,000 bonds. What would be the weight used for equity in the computation of FarCry’s W..
|
|
Consumer loans usually are repaid monthly-recurring income
: Consumer loans usually are repaid monthly from recurring income. The bank's internal files are a valid source of credit history information. Indirect reference from employers are the best source of income verification.
|
|
Discussion and analysis of condition and results
: You should also read Item #7 - "Management's Discussion and Analysis of Condition and Results of Operations" (pgs. 19 - 46) in the company's 10K Form (2011) to complete this assignment.
|
|
Which of the given alternative should be chosen
: BC Minerals's weighted cost of capital is 12 percent. Using the equivalent annual annuity method, which alternative should be chosen?
|
|
Measure of central tendency that divides a population
: The relative frequency for a class is the frequency of the class divided by the number of classes. FALSE We divide by the total frequency or total number of items not by number of classes.
|
|
Bas proposed two types of payment plans
: Skiffertons , an investment banking firm bas proposed two types of payment plans for the IPO being considered by Dakota Drilling, a manufacturer of oil drilling equipment. The first is a firm commitment of E5,000,OOO.
|
|
What is the after-tax salvage value
: Your firm needs a computerized machine tool lathe which costs $59,000 and requires $12,900 in maintenance for each year of its 3-year life. After three years, this machine will be replaced. The machine falls into the MACRS 3-year class life category...
|
|
Find the unit vector perpendicular to each
: Find the unit vector perpendicular to each of a= 6i+2j+3k and b=3i-6j-2k
|
|
Which cooling unit should be purchased and why
: Germania Corporation is considering replacing its plant cooling unit. The existing unit has recently "died" and has no salvage value. The marginal cost of capital is 19 percent. Which cooling unit should be purchased? Why?
|