BMAL 590 Quantitative Research Techniques and Statistics
Latest Update With Complete Solutions
1. A company has developed a new computer
Statistics
sound card whose average lifetime is
unknown. In order to estimate this average,
200 sound cards are randomly selected from a
large production line and tested; their average
lifetime is found to be 5 years. The five years
represents a
2. A summary measure that is computed from a popula- Parameter
tion is called a
3. Which of the following is a measure of the reliability of A
significance level
a statistical inference?
4. The process of using sample statistics to draw conclu- Doing
inferential statistics
sions about population parameters is called
5. Which of the following represents a All registered voters in
population, as opposed to a sample? the State of Michigan
6. A study in under way to determine the average height The 500 adult
pine trees se-
of all 32,000 adult pine trees in a certain national 8. The
for- est. The heights of 500 randomly selected confidence
adult pine trees are measured and analyzed. The level of a
sample in this study is statistical
inference
7. The significance level of a statistical mea- sures
inference mea- sures
1/
19
, BMAL 590 Quantitative Research Techniques and Statistics
Latest Update With Complete Solutions
ected at random selected at random from this forest
he proportion of times a conclusion about a popu- lation will be wrong in
the long run
2/
19
, BMAL 590 Quantitative Research Techniques and Statistics
Latest Update With Complete Solutions
The proportion of times
an estimation
procedure will be
correct in the long run
9. A marketing research firm selects a random
sample of adults and asks them a list of A survey
questions regarding their beverage
preferences. What type of data collec- tion is
involved here?
10. Which of the following statements is true All of these choices are
regarding the design of a good survey? true
11. Which method of data collection is involved when a re- Direct
observation
searcher counts and records the number of
students wearing backpacks on campus on a
given day?
12. The difference between a sample mean and Sampling error
the pop- ulation mean is called
13. The manager of the customer service division Stratified random
of a major consumer electronics company is sample
interested in determining whether the
customers who have pur- chased a
videocassette recorder over the past 12
months are satisfied with their products. If
there
are four different brands of videocassette
recorders made by the company, the best
sampling strategy would be to use a
14. When every possible sample with the same number of Simple
3/
19
Latest Update With Complete Solutions
1. A company has developed a new computer
Statistics
sound card whose average lifetime is
unknown. In order to estimate this average,
200 sound cards are randomly selected from a
large production line and tested; their average
lifetime is found to be 5 years. The five years
represents a
2. A summary measure that is computed from a popula- Parameter
tion is called a
3. Which of the following is a measure of the reliability of A
significance level
a statistical inference?
4. The process of using sample statistics to draw conclu- Doing
inferential statistics
sions about population parameters is called
5. Which of the following represents a All registered voters in
population, as opposed to a sample? the State of Michigan
6. A study in under way to determine the average height The 500 adult
pine trees se-
of all 32,000 adult pine trees in a certain national 8. The
for- est. The heights of 500 randomly selected confidence
adult pine trees are measured and analyzed. The level of a
sample in this study is statistical
inference
7. The significance level of a statistical mea- sures
inference mea- sures
1/
19
, BMAL 590 Quantitative Research Techniques and Statistics
Latest Update With Complete Solutions
ected at random selected at random from this forest
he proportion of times a conclusion about a popu- lation will be wrong in
the long run
2/
19
, BMAL 590 Quantitative Research Techniques and Statistics
Latest Update With Complete Solutions
The proportion of times
an estimation
procedure will be
correct in the long run
9. A marketing research firm selects a random
sample of adults and asks them a list of A survey
questions regarding their beverage
preferences. What type of data collec- tion is
involved here?
10. Which of the following statements is true All of these choices are
regarding the design of a good survey? true
11. Which method of data collection is involved when a re- Direct
observation
searcher counts and records the number of
students wearing backpacks on campus on a
given day?
12. The difference between a sample mean and Sampling error
the pop- ulation mean is called
13. The manager of the customer service division Stratified random
of a major consumer electronics company is sample
interested in determining whether the
customers who have pur- chased a
videocassette recorder over the past 12
months are satisfied with their products. If
there
are four different brands of videocassette
recorders made by the company, the best
sampling strategy would be to use a
14. When every possible sample with the same number of Simple
3/
19
