STAT PRACTICE FINAL EAM questions
well answered to pass
The mean score on a standardized math exam is 72.6; the standard deviation is
10.5. Paul is told that the z-score of his exam score is 1.2.
Is Paul's score above average or below average? above average - correct answer
✔✔above average
Seven footprints were found at a crime scene. Their length was measured in
inches and recorded in the table below:
9.25,9.25,9.4,9.5,9.6,9.6,9.6
If another footprint was found that was 12 in, what would happen to the median?
- correct answer ✔✔It would increase.
A university dean wants to know how many credits students are taking. They
randomly sample some students and put the results in the histogram below.
How many students were sampled? - correct answer ✔✔19
The Department of Education wishes to estimate the proportion of all college
students who have a job off-campus. It surveyed 1600 randomly selected
students; 451 had such jobs. The population of interest to the Department of
Education is: - correct answer ✔✔all college students
A mechanic is interested in when transmissions fail. She randomly selects eleven
cars whose transmissions have failed. Ten of them had their transmissions fail
between 150,000 to 200,000 miles. The single Chevy Spark examined, however,
, had its transmission fail at 10,000 miles. How will the mean compare to the
median? - correct answer ✔✔Mean < Median
Using Excel, how would you find the standard deviation for a sample of student's
GPAs located in cells B1 to B10 ? - correct answer ✔✔= STDEV.S (B1 : B10)
A geographer randomly selects twenty points in a county to study the elevation.
One point is on a large hill while the other points are near water level. What is the
shape of the distribution? - correct answer ✔✔skewed right
A professor wants to study the GPAs of students enrolled in all STAT 1222 classes
at her university. She asks 15 randomly selected STAT 1222 students what their
GPA is and finds the average is 3.65. What is the population?A. All STAT 1222
students anywhereB. Students enrolled at her universityC. All students enrolled in
STATD. 1222 classes at her universityE. The 15 randomly selected students -
correct answer ✔✔C. All students enrolled in STATD.
military rank - correct answer ✔✔ordinal
distance - correct answer ✔✔ratio
hair color - correct answer ✔✔nominal
temperature in celcius - correct answer ✔✔interval
Identify the following as either qualitative, quantitative discrete, or quantitative
continuous:
well answered to pass
The mean score on a standardized math exam is 72.6; the standard deviation is
10.5. Paul is told that the z-score of his exam score is 1.2.
Is Paul's score above average or below average? above average - correct answer
✔✔above average
Seven footprints were found at a crime scene. Their length was measured in
inches and recorded in the table below:
9.25,9.25,9.4,9.5,9.6,9.6,9.6
If another footprint was found that was 12 in, what would happen to the median?
- correct answer ✔✔It would increase.
A university dean wants to know how many credits students are taking. They
randomly sample some students and put the results in the histogram below.
How many students were sampled? - correct answer ✔✔19
The Department of Education wishes to estimate the proportion of all college
students who have a job off-campus. It surveyed 1600 randomly selected
students; 451 had such jobs. The population of interest to the Department of
Education is: - correct answer ✔✔all college students
A mechanic is interested in when transmissions fail. She randomly selects eleven
cars whose transmissions have failed. Ten of them had their transmissions fail
between 150,000 to 200,000 miles. The single Chevy Spark examined, however,
, had its transmission fail at 10,000 miles. How will the mean compare to the
median? - correct answer ✔✔Mean < Median
Using Excel, how would you find the standard deviation for a sample of student's
GPAs located in cells B1 to B10 ? - correct answer ✔✔= STDEV.S (B1 : B10)
A geographer randomly selects twenty points in a county to study the elevation.
One point is on a large hill while the other points are near water level. What is the
shape of the distribution? - correct answer ✔✔skewed right
A professor wants to study the GPAs of students enrolled in all STAT 1222 classes
at her university. She asks 15 randomly selected STAT 1222 students what their
GPA is and finds the average is 3.65. What is the population?A. All STAT 1222
students anywhereB. Students enrolled at her universityC. All students enrolled in
STATD. 1222 classes at her universityE. The 15 randomly selected students -
correct answer ✔✔C. All students enrolled in STATD.
military rank - correct answer ✔✔ordinal
distance - correct answer ✔✔ratio
hair color - correct answer ✔✔nominal
temperature in celcius - correct answer ✔✔interval
Identify the following as either qualitative, quantitative discrete, or quantitative
continuous:
