Victoria Giuffrida
Assignment 1
January 18, 2016
1.
A: Ordinal Data
B: Mode
C: Words
D. Poor
A: Ratio Data
B: Median
C: Extremes on one end
D: 2847.5
2.
3.
A: Nominal Data
B: Mode

If you have a lot of data on the right its skewed positively
If you have a lot of data on the left its skewed negatively

Discrete Data:
o Ratio level: we agree what 0 is per toss

1024 different events that could happen
Probability = favorable event/
STATS NOTES 3.1.16
Probability level to test for significance:
o P= <.05
1.96 = .05 on normal curve, lower probability outside of 1.96
o P= <.01
2.57
Setting the bar high
Critical Value of some kind where the .01 level starts
Want to be more sure the
Stats Notes 3.15.16
Article 2 PreAnalysis:
How students with visual impairment are taught about nutrition
Multiplechoice questionnaire on nutritional knowledge
Independent Variable: Some kind of instruction for nutrition
Dependent Variable: Nutritio
Statistics Notes: January 18, 2016
Mean, Median, Mode
Measures of central tendency
o Strength of Mean
Takes care of data on both sides
Use mean: not a lot of variable differences or extremes on both
ends
Use Median: Extremes on both sides
Use mode: When
Victoria Giuffrida
Assignment 6
Problem 1
1:
H1: Music motivates elementary students to more quickly get ready to leave at the end of the
day.
H0: Music does not motivate elementary students to more quickly get ready to leave at the end
of the day.
2:
p<0
Victoria Giuffrida
Assignment 7
Problem 1
1:
H1: Contingent praise has a significant difference benefiting classroom social experiments.
H0: Contingent praise does not have a significant difference benefiting classroom social
experiments.
2:
p<0.05
3:
The
Victoria Giuffrida
Assignment 2: Variability
January 25, 2016
1. A.
B.
C.
2. A.
B.
C.
Relatively low, not a lot of differences between variables
Mean: 548
Standard Deviation: 10.8
Low, the mean represents the numbers well
Relatively high, theres extremes