BSNS 112 MIDTERM TEST NEWEST ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS VERIFIED ANSWERS
Categorical (Qualitative) data is either: - CORRECT ANSWER✅✅✅Nominal (stand
alone/label); or
Ordinal (ordered/ranked)
Numerical (Quantitative) data is either: - CORRECT ANSWER✅✅✅Discrete (whole
numbers)
Continuous (infinite options)
Ways to present categorical data: - CORRECT ANSWER✅✅✅Bar graphs (percentages
labelled), Pie graphs, Cross tabulations, Stacked bar graph, clustered bar charts
Range - CORRECT ANSWER✅✅✅Maximum - minimum
Variance - CORRECT ANSWER✅✅✅Squared deviation around the mean
Coefficient of variation - CORRECT ANSWER✅✅✅Relative measure of variability
A skewness value more than _____ its standard error is taken to indicate a ___________
departure from symmetry. - CORRECT ANSWER✅✅✅twice, significant
Left skew - CORRECT ANSWER✅✅✅Negative skew
Right skew - CORRECT ANSWER✅✅✅Positive skew
Kurtosis - CORRECT ANSWER✅✅✅Extent to which observations cluster around a central
point and fatness of tails.
, Empirical rule - CORRECT ANSWER✅✅✅Values for Z and t
Which distribution is the odd one out w.r.t. skewness?
A. Incomes
B. Household debt
C. Age when people retire
D. Capital value of publicly listed companies - CORRECT ANSWER✅✅✅
very strong correlation - CORRECT ANSWER✅✅✅r > 0.9
strong correlation - CORRECT ANSWER✅✅✅0.75 < r < 0.9
moderate correlation - CORRECT ANSWER✅✅✅0.4 < r < 0.75
weak correlation - CORRECT ANSWER✅✅✅r < 0.4
critical value for negative, one-tailed test "<" (1 proportion) - CORRECT ANSWER✅✅✅-
1.645
critical value for positive, one-tailed test ">" (1 proportion) - CORRECT
ANSWER✅✅✅1.645
critical value for two tailed test "not equal to" (1 proportion) - CORRECT
ANSWER✅✅✅+/-1.96
unequal variances - CORRECT ANSWER✅✅✅value of levene's test is less than 0.1
QUESTIONS AND CORRECT ANSWERS VERIFIED ANSWERS
Categorical (Qualitative) data is either: - CORRECT ANSWER✅✅✅Nominal (stand
alone/label); or
Ordinal (ordered/ranked)
Numerical (Quantitative) data is either: - CORRECT ANSWER✅✅✅Discrete (whole
numbers)
Continuous (infinite options)
Ways to present categorical data: - CORRECT ANSWER✅✅✅Bar graphs (percentages
labelled), Pie graphs, Cross tabulations, Stacked bar graph, clustered bar charts
Range - CORRECT ANSWER✅✅✅Maximum - minimum
Variance - CORRECT ANSWER✅✅✅Squared deviation around the mean
Coefficient of variation - CORRECT ANSWER✅✅✅Relative measure of variability
A skewness value more than _____ its standard error is taken to indicate a ___________
departure from symmetry. - CORRECT ANSWER✅✅✅twice, significant
Left skew - CORRECT ANSWER✅✅✅Negative skew
Right skew - CORRECT ANSWER✅✅✅Positive skew
Kurtosis - CORRECT ANSWER✅✅✅Extent to which observations cluster around a central
point and fatness of tails.
, Empirical rule - CORRECT ANSWER✅✅✅Values for Z and t
Which distribution is the odd one out w.r.t. skewness?
A. Incomes
B. Household debt
C. Age when people retire
D. Capital value of publicly listed companies - CORRECT ANSWER✅✅✅
very strong correlation - CORRECT ANSWER✅✅✅r > 0.9
strong correlation - CORRECT ANSWER✅✅✅0.75 < r < 0.9
moderate correlation - CORRECT ANSWER✅✅✅0.4 < r < 0.75
weak correlation - CORRECT ANSWER✅✅✅r < 0.4
critical value for negative, one-tailed test "<" (1 proportion) - CORRECT ANSWER✅✅✅-
1.645
critical value for positive, one-tailed test ">" (1 proportion) - CORRECT
ANSWER✅✅✅1.645
critical value for two tailed test "not equal to" (1 proportion) - CORRECT
ANSWER✅✅✅+/-1.96
unequal variances - CORRECT ANSWER✅✅✅value of levene's test is less than 0.1
