Ashford BUS308 Week 3 Quiz Latest 2020 September
BUS308 Statistics for Managers
Week 3 Quiz
Question 1The Chi Square test requires data that is at least _____ in nature.
nominal
ordinal
interval
ratio
Question 2The single factor ANOVA tests for mean differences between 3 or more groups by comparing
Each population’s variance.
Each sample’s variance.
Overall versus average sample variance.
Overall versus average population variance.
Question 3 Testing to see if a single variable is distributed in a certain pattern is done with the
Chi Square Contingency Table test
ANOVA Single Factor test
Chi Square Goodness of Fit test
The F-test.
Question 4Excel Chi Square functions (test, related probabilities, etc.) are found in the
Analysis Toolpak list of functions.
Fx statistical list.
Formulas Other Functions list
all of the above
b and c only
Question 5Excel’s options for performing an ANOVA include
Single Factor ANOVA
Two Factor ANVOA with replication
Two Factor ANVOA without replication
All of the above.
Question 6ANOVA tests for variance differences
within the samples.
within the populations.
by examining mean differences.
ANOVA does not test for variance differences.
Question 7ANOVA’s SS within is an estimate of the overall variance in the data set.
True
False.
Question 8The value of the Chi Square statistic is determined by
MSbetween/MSwithin
(Mean1 – Mean2)/Standard error
∑ (Observed count – Expected count)^2/(Expected count).
None of these formulas.
Question 9One of the weaknesses with the Chi Square analysis involves having too many of the expected cells with values of 5 or less. This results in.
a decreased likelihood of rejecting the null hypothesis.
an increased likelihood of rejecting the null hypothesis.
a decreased likelihood of rejecting the alternate hypothesis.
an increased likelihood of rejecting the alternate hypothesis.
Question 10The alternate hypothesis for the single factor ANOVA states that all means differ.
True
False.
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