100% Correct Answers
Statistics will do all of the following except:
1) describe data.
2) design experiments.
3) prove relationship.
4) test hypotheses. - Answer 3)prove relationship.
I have 50 names in a hat. I draw 10 names one at a time and replace the name before
drawing each time. What type of sampling is this? - Answer simple random sampling
I have a list of 100 names. I close my eyes and place my finger on the list. The name
closest to my finger tip is the first name selected. I then choose every 3rd name from
this starting point until I have 10 names for my sample. What type of sampling is
represented? - Answer systematic sampling
The statement, "Forty percent of the class is male and 60% is female" is what category
of statistic? - Answer descriptive
In preparing for survey research, which of the following should be considered first?
1) Decide what analysis is required to satisfy the aims of the study.
2) Decide what data are required to facilitate the analysis.
Correct Response
3) Formulate the aims of the study.
4) Collect the data required by the survey. - Answer 3)Formulate the aims of the study.
Which sampling method is best for studying the effects of medical radiation exposure on
the general population in the United States? - Answer cluster sampling
The actual datum that is recorded is called - Answer observations.
The students in this class represent which of the following in relation to the student body
of MSU? - Answer sample
T/F
Simple random sampling can be used based on this section of the 4123 class roster. -
Answer True
, The data collected from one of five sections of 4123 Data Analysis would be considered
which of the following?
1) statistic
2) parameter - Answer 1)statistic
The number of apples to the number of oranges in a basket is considered what type of
derived variable? - Answer ratio
Which of the following is considered the lowest level of data?
1)nominal
2)interval
3)ordinal
4)ratio - Answer 1)nominal
The phrase "8 out of 30 statistics students" represents what type of derived variable? -
Answer proportion
The phrase "50% of the class" represents what type of derived variable? - Answer
percentage
Gender is considered what level of data? - Answer nominal
The commonly accepted level of precision is to have how many steps between the
largest and smallest observation? - Answer 30 and 300
The order in which a group of horses finish a race represents what level of data? -
Answer ordinal
A researcher is recording the number of respirations per minute for her project. These
observations would be considered what level of data? - Answer ratio
Scores on this statistics quiz would be classifed as what level of data? - Answer interval
Breaths per minute is considered what type of derived variable? - Answer rate
The following represents scores obtained on a self-esteem inventory. What is the width
of range for this distribution of scores?
31, 41, 45, 48, 52, 55, 56, 56, 63, 65, 65, 67, 67, 70, 70, 74, 75, 78, 79, 79, 80, 81, 83,
85, 85, 87, 90, 92, 95, 99 - Answer 68
The following represents scores obtained on a self-esteem inventory. What is the
variance for this distribution of scores? Round to the nearest hundreth.