StraighterLine Business Statistics
MAT150 Correct 100%
A marketing class of 50 students evaluated the instructor using the following scale:
superior, good, average, poor, and inferior. The descriptive summary showed the
following survey results: 2% superior, 8% good, 45% average, 45% poor, and 0%
inferior. - ANSWER Most students rated the instructor as poor or average.
Which word is NOT part of the definition of descriptive statistics? - ANSWER Predicting
In a sample of 900 people in a city, 225 are smokers. Based on this information, the
magazine reported that "25% of all people in the city are smokers." This report is an
example of _______: - ANSWER Inferential Statistics
Respondents were asked, "Do you now earn more than or less than you did five years
ago?" What is this level of measurement? - ANSWER Ordinal
Which of the following is an example of a continuous variable? - ANSWER Tons of
concrete to complete a parking garage
If Gallup, Harris, and other pollsters asked people to indicate their political party
affiliation as Democrat, Republican, or Independent, the data gathered would be an
example of which scale of measurement? - ANSWER Nominal
When TV advertisements report "2 out of 3 dentists surveyed indicated they would
recommend Brand X toothpaste to their patients," an informed consumer may question
the conclusion because the: - ANSWER Advertisement does not include the total
number of dentists surveyed.
For any data set, which measures of central location have only one value? - ANSWER
Mean and median
Which measures of central location are not affected by extremely small or extremely
large values? - ANSWER Mode and median
A question in a market survey asks for a respondent's favorite car color. Which measure
of central location should be used to summarize this question? - ANSWER Mode
Assume a student received the following grades for the semester: History, B; Statistics,
A; Spanish, C; and English, C. History and English are 5 credit-hour courses, Statistics
a 4 credit-hour course, and Spanish a 3 credit-hour course. If 4 grade points are
assigned for an A, 3 for a B, and 2 for a C, what is the weighted mean grade for the
semester? - ANSWER 2.76
MAT150 Correct 100%
A marketing class of 50 students evaluated the instructor using the following scale:
superior, good, average, poor, and inferior. The descriptive summary showed the
following survey results: 2% superior, 8% good, 45% average, 45% poor, and 0%
inferior. - ANSWER Most students rated the instructor as poor or average.
Which word is NOT part of the definition of descriptive statistics? - ANSWER Predicting
In a sample of 900 people in a city, 225 are smokers. Based on this information, the
magazine reported that "25% of all people in the city are smokers." This report is an
example of _______: - ANSWER Inferential Statistics
Respondents were asked, "Do you now earn more than or less than you did five years
ago?" What is this level of measurement? - ANSWER Ordinal
Which of the following is an example of a continuous variable? - ANSWER Tons of
concrete to complete a parking garage
If Gallup, Harris, and other pollsters asked people to indicate their political party
affiliation as Democrat, Republican, or Independent, the data gathered would be an
example of which scale of measurement? - ANSWER Nominal
When TV advertisements report "2 out of 3 dentists surveyed indicated they would
recommend Brand X toothpaste to their patients," an informed consumer may question
the conclusion because the: - ANSWER Advertisement does not include the total
number of dentists surveyed.
For any data set, which measures of central location have only one value? - ANSWER
Mean and median
Which measures of central location are not affected by extremely small or extremely
large values? - ANSWER Mode and median
A question in a market survey asks for a respondent's favorite car color. Which measure
of central location should be used to summarize this question? - ANSWER Mode
Assume a student received the following grades for the semester: History, B; Statistics,
A; Spanish, C; and English, C. History and English are 5 credit-hour courses, Statistics
a 4 credit-hour course, and Spanish a 3 credit-hour course. If 4 grade points are
assigned for an A, 3 for a B, and 2 for a C, what is the weighted mean grade for the
semester? - ANSWER 2.76
