BSTAT Final Multiple-Choice questions
well answered to pass
A few years ago, it came as a surprise when Apple's iPhone 4 was found to have a problem.
Users complained of weak reception, and sometimes even dropped calls, when they cradled the
phone in their hands in a particular way. A survey at a local store found that 2% of iPhone 4
users experienced this reception problem.
a. Determine whether the following statement is true or false. The population is all iPhone 4
users
b. Does 2% denote the population parameter or the sample statistic?
True, Sample statistic
We have an expert-written solution to this problem!
San Francisco 49ers' linebacker Patrick Willis won the Defensive Rookie of the Year Award in
2007 with a total of 174 tackles. Tackles are measured on what kind of a scale? Is a variable
measuring the number of tackles considered continuous or discrete?
Ratio scale; discrete
The teachers' union in California wants to know the average salary for high school teachers
throughout the country. What is the teachers' union presumably planning to calculate?
Sample statistic
,Which data scales of measurement are associated with qualitative data?
Nominal and ordinal
A population consists of
all items of interest in a statistical problem.
For which of the following population parameters is sampling not necessary?
The average height of NBA players
Which of the following is an example of qualitative data?
Your last name
At the end of a semester college students evaluate their instructors by assigning them to one of
the following categories: Excellent, Good, Average, Below Average, and Poor. The measurement
scale is a(n)
ordinal scale
The two branches of the study of statistics are generally referred to as
descriptive and inferential statistics.
, Which of the following scales represents the least sophisticated level of measurement?
Nominal
Which of the following is an example of quantitative data?
Google's closing stock price today
A recent survey of 140 small firms (annual revenue less than $11 million) asked whether an
increase in the minimum wage would cause the firm to decrease capital spending. Possible
responses to the survey question were: "Yes," "No," or "Don’t Know." This data is best classified
as
nominal scale.
Which of the following scales represents the strongest level of measurement?
Ratio
A company wants to estimate the mean price of oil over the past 10 years. What kind of data
does the company need?
Time series data
You have a point-of-sale data set that provides information on time of sale, products bought,
and payment methods customers used to complete their purchases. You want to compare
well answered to pass
A few years ago, it came as a surprise when Apple's iPhone 4 was found to have a problem.
Users complained of weak reception, and sometimes even dropped calls, when they cradled the
phone in their hands in a particular way. A survey at a local store found that 2% of iPhone 4
users experienced this reception problem.
a. Determine whether the following statement is true or false. The population is all iPhone 4
users
b. Does 2% denote the population parameter or the sample statistic?
True, Sample statistic
We have an expert-written solution to this problem!
San Francisco 49ers' linebacker Patrick Willis won the Defensive Rookie of the Year Award in
2007 with a total of 174 tackles. Tackles are measured on what kind of a scale? Is a variable
measuring the number of tackles considered continuous or discrete?
Ratio scale; discrete
The teachers' union in California wants to know the average salary for high school teachers
throughout the country. What is the teachers' union presumably planning to calculate?
Sample statistic
,Which data scales of measurement are associated with qualitative data?
Nominal and ordinal
A population consists of
all items of interest in a statistical problem.
For which of the following population parameters is sampling not necessary?
The average height of NBA players
Which of the following is an example of qualitative data?
Your last name
At the end of a semester college students evaluate their instructors by assigning them to one of
the following categories: Excellent, Good, Average, Below Average, and Poor. The measurement
scale is a(n)
ordinal scale
The two branches of the study of statistics are generally referred to as
descriptive and inferential statistics.
, Which of the following scales represents the least sophisticated level of measurement?
Nominal
Which of the following is an example of quantitative data?
Google's closing stock price today
A recent survey of 140 small firms (annual revenue less than $11 million) asked whether an
increase in the minimum wage would cause the firm to decrease capital spending. Possible
responses to the survey question were: "Yes," "No," or "Don’t Know." This data is best classified
as
nominal scale.
Which of the following scales represents the strongest level of measurement?
Ratio
A company wants to estimate the mean price of oil over the past 10 years. What kind of data
does the company need?
Time series data
You have a point-of-sale data set that provides information on time of sale, products bought,
and payment methods customers used to complete their purchases. You want to compare
