ECON 2843 TEST 3 BRENT NORWOOD
QUESTIONS WITH COMPLETE
SOLUTIONS
What does a one way anova test tell you? - CORRECT ANSWER✔✔-it
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tells you a yes or no answer on whether one group is different from the
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other
what does a two way anova test tell you? - CORRECT ANSWER✔✔-it
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conditions groups based on TWO facors rather than one
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when is it appropriate to use a TWO way ANOVA test? - CORRECT
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ANSWER✔✔-when you REJECT the NULL on a one way | | | | | | | |
is SSTR between groups or within groups - CORRECT ANSWER✔✔-
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BETWEEN
Is SSE between groups or within groups? - CORRECT ANSWER✔✔-
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WITHIN
,on the ANOVA table, how do you calculate the total SS (bottom left
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cell)? - CORRECT ANSWER✔✔-Add from top to bottom
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SS between groups + SS within groups
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on the ANOVA table, how do you calculate the df within groups (second
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column middle cell)? - CORRECT ANSWER✔✔-SSRT + SSE = Total, so you
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would subtract the total from the SSRT
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If given the df and MS between groups, how would you find the SS
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between on the ANOVA table? - CORRECT ANSWER✔✔-multiply them
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How do you find F on the ANOVA table? - CORRECT ANSWER✔✔-divide
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the MS between groups/ MS within groups
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general rules for solving ANOVA table - CORRECT ANSWER✔✔-- divide
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left to right
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- add top to bottom
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For the within groups category, the degrees of freedom are - CORRECT
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ANSWER✔✔-nt-C
total df- between df
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, aka total - SSTR
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if the total sample size is 15 and the number of groups sampled is 2,
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what his the within group degrees of freedom? - CORRECT
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ANSWER✔✔-13
15-2
total-between
If the within groups category is 13 and the total sample size is 15, what
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is the between groups degrees of freedom? - CORRECT ANSWER✔✔-2
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15-13
total-within
Fischer's method - CORRECT ANSWER✔✔-uses a T STAT and does NOT
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get rid of a type I error
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Tukeys method - CORRECT ANSWER✔✔-does account for Type I error
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QUESTIONS WITH COMPLETE
SOLUTIONS
What does a one way anova test tell you? - CORRECT ANSWER✔✔-it
| | | | | | | | | | | |
tells you a yes or no answer on whether one group is different from the
| | | | | | | | | | | | | | |
other
what does a two way anova test tell you? - CORRECT ANSWER✔✔-it
| | | | | | | | | | | |
conditions groups based on TWO facors rather than one
| | | | | | | |
when is it appropriate to use a TWO way ANOVA test? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-when you REJECT the NULL on a one way | | | | | | | |
is SSTR between groups or within groups - CORRECT ANSWER✔✔-
| | | | | | | | |
BETWEEN
Is SSE between groups or within groups? - CORRECT ANSWER✔✔-
| | | | | | | | |
WITHIN
,on the ANOVA table, how do you calculate the total SS (bottom left
| | | | | | | | | | | | |
cell)? - CORRECT ANSWER✔✔-Add from top to bottom
| | | | | | |
SS between groups + SS within groups
| | | | | |
on the ANOVA table, how do you calculate the df within groups (second
| | | | | | | | | | | | |
column middle cell)? - CORRECT ANSWER✔✔-SSRT + SSE = Total, so you
| | | | | | | | | | | |
would subtract the total from the SSRT
| | | | | |
If given the df and MS between groups, how would you find the SS
| | | | | | | | | | | | | |
between on the ANOVA table? - CORRECT ANSWER✔✔-multiply them
| | | | | | | |
How do you find F on the ANOVA table? - CORRECT ANSWER✔✔-divide
| | | | | | | | | | | |
the MS between groups/ MS within groups
| | | | | |
general rules for solving ANOVA table - CORRECT ANSWER✔✔-- divide
| | | | | | | | | |
left to right
| |
- add top to bottom
| | | |
For the within groups category, the degrees of freedom are - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-nt-C
total df- between df
| | |
, aka total - SSTR
| | |
if the total sample size is 15 and the number of groups sampled is 2,
| | | | | | | | | | | | | | |
what his the within group degrees of freedom? - CORRECT
| | | | | | | | | |
ANSWER✔✔-13
15-2
total-between
If the within groups category is 13 and the total sample size is 15, what
| | | | | | | | | | | | | | |
is the between groups degrees of freedom? - CORRECT ANSWER✔✔-2
| | | | | | | | |
15-13
total-within
Fischer's method - CORRECT ANSWER✔✔-uses a T STAT and does NOT
| | | | | | | | | | |
get rid of a type I error
| | | | | |
Tukeys method - CORRECT ANSWER✔✔-does account for Type I error
| | | | | | | | |
