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Stats Exam 1 Pierson Questions and Answers
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Stats Exam 1 Pierson Questions and Answers1). A table or listing that shows values and how many times each value occurs is:
Ans: Frequency distribution
2). What is the simplest, most fundamental level of measurement?
Ans: Nominal
3). Students are given grades of a, b, c, d, or f on their homework assignments. the use of letter
grades would be an example of what level of measurement?
Ans: Ordinal
4). The scale of measurement that assumes there is an underlying scale of equal units, but
without an absolute zero point, is the ______ scale of measurement.
Ans: interval
5). What reflects the interval or interval/ration level of measurement?
Ans: A students GPA
6). Determining a person's level of education by asking him/her to indicate the number of
school years completed would involve measurement on a _________ level of measurement.
Ans: ratio and/or interval
7). A sample is?
Ans: a portion of a population
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, 8). Researchers generally want to be able to generalize their results to a _______, but to do so,
they typically carry out their research on the basis of a _______.
Ans: Population, sample
9). The marketing director of a company wants to conduct research on the buying habits of the
company's customer base. the entire group of customers would be an example of a
________.
Ans: Population
10). The marketing director of a company examines data collected from 125 customers and
determines that customers spent an average of $274.55 in purchases from the company
over the past 12 months. the collection or group of 125 customers would represent a:
Ans: sample
11). The average iq score for the entire population of students enrolled at a local community
college would be an example of a __________.
Ans: parameter
12). A researcher wants to know how many emails senior citizens send to friends each week. if
it were possible to find the average for the entire population of senior citizens, it would be
an example of a _______.
Ans: parameter
13). A researcher records the gpa at the end of the semester for each student in a sample of 50
freshman students. the average of the 50 gpa scores would be a:
Ans: statistic
14). The term used to describe all possible cases is:
Ans: population
15). Statistics that are used to summarize data are referred to as:
Ans: descriptive statistics
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