psy225 homework
this is for my psy225 homework. I am trying to figure out these problems but it's hard to understand.
Please help me asap! there is class database file for helping problems. Thanks!
the problems are..
1) My hypothesis: I predict that people in this class were happier on the first day of class (as indicated by Column L) than they were after the first exam (as indicated by Column AG). Is this hypothesis correct (assume an alpha level of .05 and a two-tailed test; use the post-test sample size and the pretest standard deviation to calculate the standard error)? Explain your answer and show your work.
2) Using the Class Database, come up with a workable hypothesis that compares two groups on a single measure.
Gender
Height
2
2
2
2
1
1
2
2
2
2
2
1
2
2
2
2
2
2
1
2
3
1
1
1
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
2
2
2
1
2
1
2
1
2
2
1
2
2
2
2
2
2
2
2
1
2
2
2
1
2
2
2
2
2
2
2
1
2
1
1
2
2
2
2
2
1
2
2
2
2
1
1
2
2
1
Age
66
59
60
58
72
70
62
63
61
61
67
68
64
61
64
61
66
62
68
65
60
69
78
67
62
62
66
64
65
61
66
63
61
67
60
73
66
62
72
62
64
62
64
71
64
68
62
68
64
61
66
66
63
65
66
65
63
64
66
69
65
65
69
68
68
62
64
69
63
64
63
71
67
71
68
63
59
63
67
66
68
66
66
59
62
71
69
63
61
69
Year
26
20
22
18
21
21
20
18
19
22
28
19
20
19
21
22
21
20
22
20
21
20
21
21
19
20
20
20
20
19
18
21
28
47
21
29
19
22
24
23
20
19
20
21
20
22
20
22
20
19
20
18
18
20
20
21
20
22
21
19
21
20
24
22
19
20
22
19
20
19
21
25
20
20
20
19
24
18
22
19
20
19
31
19
18
18
21
19
20
19
Major
3
3
4
2
3
3
3
2
3
4
3
2
3
2
3
4
3
3
3
2
2
3
4
2
2
3
3
3
3
2
2
4
3
3
5
4
2
3
4
4
3
2
3
4
3
3
2
4
3
2
3
2
1
3
2
4
3
4
4
2
4
3
3
3
3
2
3
2
3
3
4
3
2
3
3
2
4
2
4
2
3
2
3
2
1
2
3
2
3
2
Home
1
2
5
2
1
1
1
1
1
1
1
1
5
1
1
1
1
1
1
5
1
1
1
1
1
5
1
1
1
5
2
5
1
1
1
5
1
1
5
5
3
5
1
1
1
1
1
5
1
4
1
1
1
1
4
1
1
1
1
1
1
1
1
1
5
1
1
1
1
1
1
5
1
5
4
2
1
1
5
1
1
1
1
1
1
5
1
1
1
1
4
1
3
1
4
1
5
3
1
4
5
1
3
1
2
1
3
1
1
4
3
1
1
1
1
3
3
1
3
1
1
1
2
1
1
1
1
1
1
1
1
1
3
1
2
2
3
4
1
2
4
1
1
5
5
3
1
3
2
1
1
3
3
2
1
1
1
2
1
1
1
2
2
1
2
3
1
1
2
1
1
2
3
1
1
1
1
1
5
2
Enjoy School
Food
3
4
2
7
1
5
3
5
4
6
6
5
6
6
3
3
6
3
3
5
4
4
1
6
5
5
5
3
2
3
4
3
6
5
6
6
5
6
5
5
4
6
4
6
6
5
5
1
5
6
6
6
5
6
4
4
5
4
4
4
5
6
5
5
7
1
5
6
5
5
4
4
4
3
4
4
4
5
4
5
4
5
5
5
4
5
5
5
5
5
Pretty
5
3
6
7
1
2
6
2
4
4
2
4
5
5
4
5
4
5
6
2
3
3
1
5
2
3
4
3
4
3
5
4
5
6
5
4
4
3
4
5
5
7
3
3
3
5
6
3
4
5
6
2
5
7
2
5
4
6
7
5
5
4
4
3
6
4
5
4
3
7
4
2
4
5
3
5
2
5
4
4
4
5
1
5
3
6
7
6
7
5
5
3
7
7
5
6
4
6
6
6
4
3
3
6
5
5
6
5
5
1
6
5
1
7
5
3
5
3
4
3
6
5
7
5
4
5
4
4
5
6
3
5
3
3
6
6
5
3
6
4
5
3
6
7
3
7
6
6
6
5
6
4
6
7
5
5
3
6
4
6
7
6
4
4
6
6
5
3
4
5
5
6
7
3
3
4
5
4
5
5
Enjoy Hawaii
Happy
2
3
3
7
2
7
5
6
6
7
4
5
6
6
7
6
7
7
5
3
2
6
7
7
3
2
6
6
4
7
6
4
5
6
5
6
6
7
6
6
6
6
7
7
7
6
6
1
7
6
6
4
7
7
6
7
7
7
7
5
7
5
5
5
7
7
6
6
6
4
7
7
5
4
7
5
7
6
6
7
5
6
7
4
5
6
7
6
6
5
Drunk
1
2
3
7
2
5
5
6
2
7
6
5
7
5
3
3
7
6
3
1
1
5
2
7
2
5
4
7
5
5
7
4
5
3
7
4
2
6
5
6
4
5
1
6
6
6
3
1
6
7
6
6
6
5
4
7
4
6
6
5
7
2
5
5
7
5
1
7
5
4
5
7
5
6
5
6
4
6
6
7
3
5
7
6
4
5
6
6
7
6
3
1
1
1
1
7
1
1
6
4
4
4
1
1
6
1
1
1
1
1
1
2
1
4
2
1
2
1
2
1
5
1
6
2
5
7
1
3
7
2
1
2
1
5
1
2
1
1
4
1
1
1
1
1
1
1
3
1
1
2
1
1
6
1
1
5
1
4
1
6
2
5
1
5
1
2
1
2
2
1
1
1
1
1
7
1
2
2
6
Exercise Sleep
0
5
5
2
8
5
3
2
3
4
5
5
5
5
3.5
4
4
2
5
5
0
5
0
5
3.5
3
5
1
3.5
4.5
4.5
2
2
0
4
3.5
0
3
2
0
0
5
2
8
7
4.5
1
4
1
3
2
5
3.5
14
5
4.5
0
3
1
4.5
1
5
3
4
4
5
4
5
5
2
3.5
3
4
4
1.5
3
2
3
3
5
3.5
2
4
2
3
6
7
6
2
7
5
6
8
7
7
7
8
6
8
6
7
8
8
6.5
7
6
7
10
7
10
5.5
6
6
6
8
6
7
6.5
6.5
5.5
6
6.5
6
5
6
6
7
7
6
6
8
7
6
8
7.5
8
6
5
7
6
6
6
8.5
7
7
5
7
6
5.5
7
7
9
7
7
5
6
6
8
6
7
7
5
8
6
7
7
5
6
8
8
8
6
Coffee
Animal
Social Media
Studying Computer Book
Commute Means
Work Environment
Salary
0 Horse
1
5
5 Chinese Novel
1
2
5
2 Cat
1
2
4 Hemlock Grove
1
2
3
0 Monkey
0
1
1 Harry Potter
1 2, 3
5
0 Dog
2
2
3 Native Son
1
2
1 Cat
1
2
2 None
1
2
2 Elephant
2
2
0.5 Art of War
1
3
1
1 Dog
0
3
2 Me Before You
1
2
0 Dog
1
1
1 Mocking Jay
2
2
1.5 Dog
1.5
1.5
1.5 Burn
1
1
1
2 Dog
1.5
1.5
1.5 None
1
1
2
1 Dog
1
2
3 Fifty Shades of Grey
1
1
2
1 Wolf
7.5
2
3 None
1
1
1
0 Dog
1
3
1 Fifty Shades of Grey
2
1
1 Dog
0
4
2 Hopeless
2
1
2 Wolf
2.5
1.5
1.5 Eat, Pray, Love
1
1
2
0 Rabbit
0
2
6 Les Miserables
1
2
4
1 Elephant
0
4
4 Insurgent
1
2
2
0.5 Penguin
5
2
5 If I Stay
1
1
1
0 Tarsier
1
2
4 Danielle Steel Book 1
1
4
2 Dog
0
2
4 Inferno
1
2
3
0 Giraffe
0
4
6 Maze Runner
1
1
2
0 Liger
1.5
2
2.5 None
2
4
0 Dog
10
0
12 Kite Runner
1
2
0 Ant
1
2
3 Why Revival Tarries1Long
2
2
1 Cat
2
4
5 Hannibal
1
2
4
0 Monkey
1
6
4 I Hunt Killers
2
0 Lion
6
2
5 The Art of Racing in2 Rain
the
2
0 Duck
4
5
10 Kite Runner
1
1
2
1 Cats
2.5
1.5
5 A Piece of Cake
2
2
1 Dog
3
1
2.5 None
2
1
1 Dog
10
4
5.5 Insurgent
2
1
2 Dog
2
2
5 Letting Anna Go
1
1
4
2 Dog
2
1
1.5 Longest Ride
2
2 Cat
0
1.5
1 None
1
1
3
1 Moose
20
2
3 Chocolat
1
1
3
0 Duck
0
3
3 Tattoo
1
1
0 Dog
0
1
2 The Giver
2
1
0 Elephant
0
3
1 House Rules
1
2
1
0 Dog
2
2
4 Long Halftime Walk 1
1
1
1 Dog
10
2
2 Middle Sex
1
2
1
2 Narwhal
2
1
3 House of Hades
2
3
0 Monkey
0
1
2 Teen Vouge
2
3
0 Koala
0
2
4 Something Blue
2
4
0 Turtle
0
2
0 Sherlock Holmes, Vol. II
1
3
1
0 Giraffe
0
5
2 A Catcher in the Rye
1
1
2
1 Dog
1
2
4 None
2
1
1 Dog
1
3
3 Harry Potter
1
1
2
1 Wolf
1
1
2 The BFG
2
2
1 Fish
2
3
8 Fifty Shades of Grey
1
1
1
0 Sloth
5 Hitchhiker's Guide to the Galaxy
2
1
1 Cats
6
2
3 Fifty Shades Freed 1
1
1
0 Turtle
3
4
8 Catching Fire
2
1
0 Wolf
0
4
6 Divergent
1
1
3
0 Beluga Whale
2
2.5
2.5 Robinson Crusoe 2
1 Lion
0
1
2 Looking for Alaska 1
1 Dolphin
1.5
5 Last Song
1
1
1 Narwhal
5
6
10 Secret History
2
4
1 Cat
7
1.5
1 Keep Quiet
1
1
4
1 Koala
3
1
3.5 Twilight
2
1 Cats
10
1.5
3.5 None
1
1
1
1 Tiger
1
2
2 Catching Fire
1
1
1
0 Dog
3
1
1 Seventh Heaven 1
2
2 Cat
8
2
2 Game of Thrones 1
1
3
0 Wolf
1
5
5 The Giver
2
1
0 Horse
2
3
5 Telesa Trilogy
1
3
0 Dog
3
2
1 None
1
1
1
1 Cat
0
4
3 Illuminati Papers 1
1
1
1 Turtle
2
3
5 Something Borrowed
2
1
1 Otters
1
2
2 The Facts Behind Helsinki Roccamatios 1
1
2
2 Dog
2
3
2 Looking for Alaska 1
3
5
0 Dog
10
4
7.5 Hunger Games
1 1, 2
2
0 Dog
15
2
3 John Madden Biography
1
1
4
0 Dog
15
1.5
4 The Opposite of Lonliness
2
0 Wolf
4
1
3 House of Leaves 1
2
3
3 Cat
0
1.5
4.5 Culture Shock
2
1
1 Goats
2
1.5
1 The Fault in Our Stars
2
1
0 Cat
1
1
2 Flowers for Algernon
1
2
1
1 Peacock
5
3
3 Inferno
2
3
1 Lion
2
2
4 The Fault in Our Stars
1
1
1
1 Dog
4
2
0 The Fault in Our Stars
1
1
1 Panda
5
1
3.5 The Lucky One
1
2
4
1 Shark
1
1
3 Song of 16 & fire 1
1
2
1 Dog
0
4
5 None
1
1
1
6
7
5
10
7
7
1 Cat
0.5 Panda
1 Wolf
0 Dog
1 Tiger
0 Lion
5
1
1
5
3
3
1
5
2
2
4
4 The Fault in Our Stars
1
4 The Kite Runner
1 1,2
3 None
1
3 The Fault in Our Stars
2
9 Fifty Shades of Grey
1
2 The Two Towers 2
1
1
2
3
3
3
2
1
2
2
Vacation Benefits Workload LanguagesNative
Chairs
4
2
3
2 Chinese
5
4
2
2 English
2
4
3
1 English
1 English
1 Korean
3
4
5
2
1 English
1 Korean
1
4
5
3
3 English
2
4
3
5
2 English
3
4
1
5
2 English
1
5
4
3
2 Hebrew
2
5
4
3
1 English
2
5
3
4
2 English
4
5
2
3
1 English
1
4
5
3
1 English
5
1
2
3
2 Chinese
1
3
5
4
5 Italian
2
3
4
5
1 English
1
2
3
5
2 English
1
4
2
5
2 Korean
1
5
3
4
1 English
2
5
3
1
1 English
2 English
4
3
5
1
1 English
1
5
2
3
2 English
1 English
1
5
3
4
1 English
3
4
5
1
2 English
1
4
5
3
2 English
3
5
2
4
1 English
2
5
3
4
1 English
3
1
5
2
1 English
2 English
1
5
2
4
1 English
1
5
4
2
2 Vietnamese
1 English
2
5
4
3
3 English
3
4
2
5
1 English
2
4
3
5
1 Vietnamese
3
5
4
2
1 Ilicano
1
5
2
4
1 English
1
4
5
2
1 English
2
5
1
3
1 English
2
5
3
4
1 English
1
5
4
3
1 English
3
5
4
2
1 English
1
3
4
5
2 Japanese
1
5
4
3
2 Japanese
3
5
4
2
1 English
2
5
3
4
3 English
2
5
4
3
2 Filipino/Tagalog
2
3
5
4
1 English
1
5
4
2
1 English
2 English
1 Tagalog
2 Spanish
1
2
5
3
1 English
2
5
1
3
1 English
1 English
2
5
3
4
1 English
3
4
2
5
1 English
1 English
2
5
4
1
2 English
2
5
3
4
1 English
2 Tongan
2
5
3
4
1 Hawaiian
2
4
3
5
1 English
2
5
3
4
1 English
2
4
5
3
1 English
4
2
3
1
2 English
1
5
3
4
2 English
1
5
3
2
1 English
2 English
1
4
2
5
2 English
3
4
2
5
1 English
2
5
3
4
1 English
3
4
2
5
1 English
1
5
2
4
1 English
2
5
4
3
1 English
1 English
1
5
2
3
1 English
1
4
5
2
1 English
2
5
3
4
1 English
2
2
2
4
3
3
3
2
3
2
3
4
4
2
3
2
3
2
2
3
2
3
4
3
3
3
2
2
3
2
3
3
3
3
2
5
1
3
3
4
3
3
2
1
1
2
2
2
3
4
4
3
3
3
2
3
3
2
2
2
4
1
3
1
2
2
3
2
3
4
2
2
2
3
3
3
3
2
3
1
2
3
3
1
2
1
3
1
1
2
2
1
3
3
2
1
1
1
5
5
5
4
4
3
2
4
3
5
3
5
4
1
4
2
5
4
1 English
2 Cantonese
2 English
1 English
3 Chinese
1 English
Happy.2
6
5
2
3
3
4
4
3
4
5
4
3
3
2
4
5
5
4
5
3
4
2
5
3
6
7
6
1
5
5
7
6
3
6
5
5
2
5
5
1
3
5
4
7
2
4
5
5
6
7
2
5
7
5
6
1
4
1
5
4
5
6
3
5
1
5
4
5
6
3
4
4
5
4
1988 Olympics
2012 Olympics
9.79
9.63
9.92
9.75
9.97
9.79
9.99
9.8
10.04
9.88
10.11
9.94
10.11
9.98
Injured
12.26
11.99
M (top 7)
9.99 9.824286
SD(top 7)
#NAME? #NAME?
Gold
Silver
Bronze
z-score
-2
-1.73
1988
10.2
10.1
2012
10
10.1
9.9
10
9.8
9.9
9.7
9.8
9.6
1
2
3
4
5
6
9.7
7
9.6
9.5
9.4
1
2
3
4
5
6
7
Mean
Median
Mode
SD