C207 WGU OA multi choice questions
A automobile mechanic finds out that the amount spent by way of customers has a median of
$2 hundred and preferred deviation $30. What is the chance that the next customer will spend
between $a hundred and ten and $290 (count on everyday distribution)?
A - 68.Three%
B - 95.Four%
C - 99.7%
D - one hundred% - ANS-C - ninety nine.7%
Use Z rating
According to The Empirical Rule, approximately sixty eight.Three% of the statistics points in a
dataset will be inside 1 widespread deviation of the imply.
Approximately ninety five.Four% of the statistics points in a dataset will be within 2 popular
deviations of the mean.
And almost all ninety nine.7% of the records factors in a dataset might be within three trendy
deviations
FLIC (finance, learning, internal, client) corporations pick KPIs to measure the 4 views
Improves agency alignment to strategy
Requires time and effort AND may not yield favored behavioral alternate - ANS-Balanced
Scorecard
produce no extra than three.Four defects in line with million outputs pretty disciplined,
records-driven approach for improving nice brief, virtually described tasks - ANS-Six Sigma
Question - An Organization seeks to shift its enterprise method to improvement of latest
merchandise for the future even as still developing sales of its current products. Which tool
could assist the organization cognizance on both its economic goal and growth of latest
merchandise?
A - Net Promoter Score
B - Six Sigma
C - Results Based Management
D - Balanced Scorecard - ANS-D - Balanced Scorecard
Key phrases: strategy, cognizance on both, economic, boom
, Question - Are there
variations in average police salaries across three adjacent precincts? Annual salaries of man or
woman police officers from 3 precincts
A - paired pattern t-check
B - ANOVA
C - a couple of regression
D - chi-rectangular - ANS-B - ANOVA
Key words: salaries, 3 precincts
Question - Are there differences in police staffing across three adjacent precincts? Staffing of
individual police officers from three precincts
A - paired sample t-test
B -ANOVA
C - multiple regression
D - chi-rectangular - ANS-D - chi-square
Key word: staffing
• Did you NOTICE the wording changed??
• STAFFING IS HEADCOUNT!!
•IF WE ARE COUNTING, THAT IS A FREQUENCY - We CAN'T use ANOVA
• WE NEED CHI-SQUARE
• PAY ATTENTION SINCE CHANGING ONE WORD HAS CHANGED THE ANSWER!
Question - If you got here in first, 2nd, or 1/3 in a race, this would be an instance of a sort of
facts. Rankings are an example of which sort of records?
A - Nominal
B - Continuous
C - Discrete
D - Ordinal - ANS-D - Ordinal
• Nominal - names
• Ordinal - order
• Interval - identical distance
• Ratio - Unique zero point
Question - Is there a courting among variety of schooling hours for counselors and range of
affected person incidents requiring physical restraint? Staff schooling hours and 3 years of
month-to-month prevalence information.
A - Regression
A automobile mechanic finds out that the amount spent by way of customers has a median of
$2 hundred and preferred deviation $30. What is the chance that the next customer will spend
between $a hundred and ten and $290 (count on everyday distribution)?
A - 68.Three%
B - 95.Four%
C - 99.7%
D - one hundred% - ANS-C - ninety nine.7%
Use Z rating
According to The Empirical Rule, approximately sixty eight.Three% of the statistics points in a
dataset will be inside 1 widespread deviation of the imply.
Approximately ninety five.Four% of the statistics points in a dataset will be within 2 popular
deviations of the mean.
And almost all ninety nine.7% of the records factors in a dataset might be within three trendy
deviations
FLIC (finance, learning, internal, client) corporations pick KPIs to measure the 4 views
Improves agency alignment to strategy
Requires time and effort AND may not yield favored behavioral alternate - ANS-Balanced
Scorecard
produce no extra than three.Four defects in line with million outputs pretty disciplined,
records-driven approach for improving nice brief, virtually described tasks - ANS-Six Sigma
Question - An Organization seeks to shift its enterprise method to improvement of latest
merchandise for the future even as still developing sales of its current products. Which tool
could assist the organization cognizance on both its economic goal and growth of latest
merchandise?
A - Net Promoter Score
B - Six Sigma
C - Results Based Management
D - Balanced Scorecard - ANS-D - Balanced Scorecard
Key phrases: strategy, cognizance on both, economic, boom
, Question - Are there
variations in average police salaries across three adjacent precincts? Annual salaries of man or
woman police officers from 3 precincts
A - paired pattern t-check
B - ANOVA
C - a couple of regression
D - chi-rectangular - ANS-B - ANOVA
Key words: salaries, 3 precincts
Question - Are there differences in police staffing across three adjacent precincts? Staffing of
individual police officers from three precincts
A - paired sample t-test
B -ANOVA
C - multiple regression
D - chi-rectangular - ANS-D - chi-square
Key word: staffing
• Did you NOTICE the wording changed??
• STAFFING IS HEADCOUNT!!
•IF WE ARE COUNTING, THAT IS A FREQUENCY - We CAN'T use ANOVA
• WE NEED CHI-SQUARE
• PAY ATTENTION SINCE CHANGING ONE WORD HAS CHANGED THE ANSWER!
Question - If you got here in first, 2nd, or 1/3 in a race, this would be an instance of a sort of
facts. Rankings are an example of which sort of records?
A - Nominal
B - Continuous
C - Discrete
D - Ordinal - ANS-D - Ordinal
• Nominal - names
• Ordinal - order
• Interval - identical distance
• Ratio - Unique zero point
Question - Is there a courting among variety of schooling hours for counselors and range of
affected person incidents requiring physical restraint? Staff schooling hours and 3 years of
month-to-month prevalence information.
A - Regression
