Two-Pop
One-Way ANOVA
Two-Way ANOVA
Potpourri 1
Potpourri 2
100
______________ populations test for a "difference of means", while ______________ populations test for a "mean of differences"
Independent, Dependent
100
A higher _________ /_________ ratio leads to a higher chance of accepting Ha (at least one mean differs)
Between/Within
100
Why is it called a Two-Way ANOVA?
testing two factors for their effect on the observations (i.e. effect on the means)
100
Using Interbrand's Best Global Brand ranking, what is the 4th highest ranking automotive sector brand in Europe?
Volkswagen
100
Facebook's stock is down this amount (%), YTD.
40%
200
What is a big driver of whether or not to accept that there is a difference of means for independent populations?
Dispersion of the distributions. (note from BNAD 276: dispersion is dependent on sample size)
200
For its new EV, the ID 4, Volkswagen is testing four different types of tires for quality of road traction (scale 1 to 5) on bituminous road surfaces. What is the factor in this One-Way ANOVA?
type of tire
200
What type of test considers whether or not the combination of type of french fries and type of ketchup increases taste preference?
Two-Way with interaction
200
Geographic region of the U.S. that heavily uses the word "Pop" to describe a sweetened carbonated beverage, instead of the word "soda"
Midwest
200
If significance level of a One-Way ANOVA is 5% and the range of p-values falls between 0.001 and 0.025, what is the conclusion?
accept Ha, at least one mean differs. This signals that the one factor has an effect on the observations (means)
300
Independent or Dependent Populations? The pricing of Tory Burch sandals is tested against the pricing of Curry Flow 8 shoes
Independent. Different brand, different type of footwear... very little in common.
300
You should always interpret the p-value as if the _____ hypothesis were true.
null
300
This is the Ha for any type of ANOVA test
at least one mean differs
300
When would you divide the significance level (alpha) by two for an ANOVA test?
Never
300
A nova
400
This parametric equation would build whom?
400
If we can accept the Ha that at least one mean differs, what are the names of the two tests we can use to understand which mean(s) differ?
Tukey and Fisher's
400
If the confidence interval does not include "0" when the hypothesized value is "0", this conclusion can be reached
Reject Ho and Accept Ha; i.e. the means differ
400
This 90's star of the movie "I Know What You Did Last Summer" celebrates her birthday today.
Jennifer Love Hewitt
400
Using Interbrand's Global Brand ranking, what is the 4th ranked Luxury goods brand in Europe?
Gucci
500
Why can dependent sampling sometimes be considered more powerful than independent sampling?
With dependent sampling you pair observations, you control a variable based on that pairing. Controlling a variable removes the variation of that variable. (see examples of husband/wife pairing (income effect removed), same-person pairing (gender, age, height, etc. removed))
500
The F-distribution is always a one-tail test because of this
Always squaring the difference in the numerator when building the test statistic
500
In a Two-Way ANOVA with 5 columns and 3 rows, what is the df1 for Factor B?
df1 for Factor B is number of rows minus 1. or 4-1= 3
500
In a test of dependency, how many parameters of interest are there?
1 (the mean of the differences, of whatever you're measuring)
500
Many speculate this person chose his company's logo as blue because he is colourblind
Mark Zuckerberg (of Facebook)