Oops, I did it again
Jan expected that both versions of the website would be used equally.
What is a null hypothesis?
K-1
What is degrees of freedom between?
Least Significant Difference
What is a post hoc test?
True or false, F (2, 10) = .03, p = .001
False, in order for p to be significant, the F value must be greater than 1.
When the same people provide measurements for different levels of a factor
What is a repeated ANOVA?
The variance difference among group means
What is sum of squares between?
=MSb/MSerror
What is the F value?
When the effect of factor A depends on the level of factor B or the converse.
What is an interaction?
How many F values are reported for a 2 x 3 x 3 ANOVA?
What is 5 F values with 3 main effects and 2 interactions?
Fred expected to find that people liked his design better when compared to Jan's design.
What is an alternate hypothesis?
FA(2, 10)= 8.218, p = .006
FB(2, 10) = 1.122, p = .358
Finteraction(2, 10) = 3.502, p = .110
What is a factorial ANOVA with a main effect of factor A?
the effect size for an ANOVA
What is eta squared or partial eta squared?
In a 1 way ANOVA there are ____ IV(s) and ____DV(s).
one IV and one DV
=SS/df
What is Mean Square?
True or False, p = .000
False, it is not possible to have no probability of something.
Everyone in the universe listened to all three songs. Which song was rated the highest? Song 1: 5,5,4,7 Song 2: 5,6,7,7 Song 3: 7,8,7,9
What is F (2,6) = 11.4, p = .009, song 3 was the highest rated song.
Were the performances better in the morning, afternoon or evening concerts for the stagehands who worked all three? Morning: 250, 310, 200, 256 Afternoon: 500, 490, 550, 700 Evening: 480, 660, 570, 510
F(2,6) = 18.410, p = .003. Afternoon and evening concerts were the best for the stagehands.
Were the fans significantly more friendly in one city assuming that there are different fans in each city. Las Vegas: 480, 660, 570 or Reno: 510, 400, 410 or Palm Springs: 327, 330, 410 or Orlando: 520, 450, 395
F(3,8) = 5.198, p = .028 Palm springs v Las Vegas and Reno v Las Vegas were significant. Las Vegas had the highest mean.
Her children loved her lullabies but which one was significantly better or worse? Lullaby A: 5,6,5,8,6 Lullaby B: 9,8,6,8,7 Lullaby C:5,8,9,7,7
F (2, 8) = 1.691, p = .244
She wondered which season sold the most albums? It is safe to assume that different people purchased the albums. Winter: 8, 7, 6, 8 or Summer: 9, 8, 4, 4 or Fall: 3, 5, 6, 5 or Spring: 8, 9, 8, 4
F (3, 12) = 1.558, p = .251 there was no significant difference.
Her fans rated their favorite costume. There were three different groups of fans at three different shows. Costume 1: 7, 8, 4 Costume 2: 7, 9, 11 Costume 3: 2, 3, 4
F(2,6) = 8.714, p = .017 Costume 2 was the best.
She had three producers: Devan, Fedar, and Varol. Which did she like the best? Devan: 7, 2.5, 7.5, 5, 5.5 Fedar: 7, 5, 7.5, 6, 7 Varol:7.5, 6, 6.5, 6.5, 8.7
F (2,8) = 3.247, p = .093
She wondered if she had more TikTok views than Queen B who has 80k per day. She had 117k, 130k, 120k, 110k.
t (3) = 9.456, p = .003
She took up the new sport of dog geocaching. Which dog found more? Spot: 8, 9, 8 or Buddy: 4, 4, 3 or Ace: 5, 6, 5.
F (2, 6) = 50.33, p = .001 All were significantly different but Spot found the most.
B wondered if she had more shoes than her rival singers: B- 9, 8, 6, 8; MC- 7, 8, 9,8; QB- 3, 5, 6, 5; TS- 3, 5, 6, 5
F (3, 12) = 9,646, p = .002
B and MC had significantly more than QB or TS.