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29 Cards in this Set
- Front
- Back
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CI
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Confidence interval
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d
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Cohen’s measure of effect size (standardized mean difference)
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df
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Degrees of freedom
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E
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Expected value in a cell of contingency table
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Ha or H1
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H sub a or H sub one
Alternate hypothesis |
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H0
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H sub zero
Null hypothesis |
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n
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Sample size
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N
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Population size
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O
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Observed value in a cell of contingency table
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p
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p value
Probability of a statistic occurring by chance |
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r
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Sample correlation coefficient
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S
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Sample standard deviation
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S2
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s squared
Sample variance |
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Sp
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s sub p
Pooled standard deviation |
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Sx
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s sub x-bar
Sample standard error of the mean; standard deviation of sampling distribution |
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t
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t value
t value from Student’s t distribution |
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_
x |
X-bar
Sample mean; mean of x values |
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Z
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Z score
Standard normal deviate |
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α
alpha |
Significance level (Type I error)
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β
beta |
Beta (Type II error)
or Slope of population regression line |
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χ2
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chi-square
Test statistic for contingency table |
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δ
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delta
Mean difference of population observations |
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Δ
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delta (capital delta)
Change |
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μ
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mu
Population mean |
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σ
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sigma
Population standard deviation |
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σ2
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sigma squared
Population variance |
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σ-
x |
sigma sub x-bar
Standard error of the mean |
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Σ
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the sum of (capital sigma)
Sum the values that follow |
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ρ
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rho
Population correlation coefficient |
