Data Analysis Exam Questions with
Verified Solutions
Statistics will do all of the following except:
1)describe data.
2)design experiments.
3)prove relationship.
4)test hypotheses. - ANS-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? - ANS-simple random sampling
The order in which a group of horses finish a race represents what level of data? - ANS-
ordinal
A researcher is recording the number of respirations per minute for her project. These
observations would be considered what level of data? - ANS-ratio
Scores on this statistics quiz would be classifed as what level of data? - ANS-interval
Breaths per minute is considered what type of derived variable? - ANS-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 - ANS-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.
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 - ANS-285.27
The following frequency distribution table lists the heights of 49 pre-teens. What is the
mean of this distribution? Round to the nearest hundreth.
, Height Class; Mark; Frequency
50-52; 51; 5
53-55; 54 ;8
56-58; 57; 12
59-61; 60 ;13
62-64 63 11 - ANS-58.04
The following represents scores obtained on a self-esteem inventory. Calculate the
mean for this distribution of scores. Round to the nearest hundreth.
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 - ANS-70.43
The following represents scores obtained on a self-esteem inventory. Calculate the
standard deviation for this distribution of scores. Round to the nearest hundreth.
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 - ANS-16.89
The following represents scores obtained on a self-esteem inventory. What is the 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 - ANS-31 to 99
What is the median score of the following distribution representing the systolic blood
pressures of 20 patients? Round to the nearest tenth.
130, 125, 120, 110, 115, 115, 140, 145, 125, 124, 98, 105, 115, 108, 119, 120, 136,
132, 130, 121 - ANS-120.5
The following frequency distribution table lists the heights of 49 pre-teens. What is the
standard deviation of this distribution? Round to the nearest hundreth.
Height Class; Mark; Frequency
50-52; 51; 5
53-55; 54 ;8
56-58; 57; 12
59-61; 60; 13
62-64; 63; 11 - ANS-3.85
Verified Solutions
Statistics will do all of the following except:
1)describe data.
2)design experiments.
3)prove relationship.
4)test hypotheses. - ANS-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? - ANS-simple random sampling
The order in which a group of horses finish a race represents what level of data? - ANS-
ordinal
A researcher is recording the number of respirations per minute for her project. These
observations would be considered what level of data? - ANS-ratio
Scores on this statistics quiz would be classifed as what level of data? - ANS-interval
Breaths per minute is considered what type of derived variable? - ANS-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 - ANS-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.
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 - ANS-285.27
The following frequency distribution table lists the heights of 49 pre-teens. What is the
mean of this distribution? Round to the nearest hundreth.
, Height Class; Mark; Frequency
50-52; 51; 5
53-55; 54 ;8
56-58; 57; 12
59-61; 60 ;13
62-64 63 11 - ANS-58.04
The following represents scores obtained on a self-esteem inventory. Calculate the
mean for this distribution of scores. Round to the nearest hundreth.
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 - ANS-70.43
The following represents scores obtained on a self-esteem inventory. Calculate the
standard deviation for this distribution of scores. Round to the nearest hundreth.
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 - ANS-16.89
The following represents scores obtained on a self-esteem inventory. What is the 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 - ANS-31 to 99
What is the median score of the following distribution representing the systolic blood
pressures of 20 patients? Round to the nearest tenth.
130, 125, 120, 110, 115, 115, 140, 145, 125, 124, 98, 105, 115, 108, 119, 120, 136,
132, 130, 121 - ANS-120.5
The following frequency distribution table lists the heights of 49 pre-teens. What is the
standard deviation of this distribution? Round to the nearest hundreth.
Height Class; Mark; Frequency
50-52; 51; 5
53-55; 54 ;8
56-58; 57; 12
59-61; 60; 13
62-64; 63; 11 - ANS-3.85
