Variable Types
What type of variable(s) is needed for a two means analysis?
One categorical, one numeric
In a normal distribution, what precent of my data should be within 2 standard errors?
95%
What is the name of this distribution? (Slide 1)
T distribution
What were the two names of the faces for our facial sterotyping dataset?
Tim and Bob
What sort of variable(s) is needed for a one proportion test?
One binary categorical variable.
In a normal distribution, what precent of my data is greater than 3 standard errors?
0.15%
What is the name of the test statistic for an ANOVA?
F-statistic
Name something you can gargle before surgery to prevent a sore throat.
Licorice water
What type of variable(s) are needed for a Chi-squared test?
Categorical variables, at least one has more than two categories.
What is the name of the analysis that tells us which pairs of variables are different in an ANOVA?
Tukey's HSD
What symbol do we use to represent the slope term in a regression equation?
Beta1
Name two of the three species of penguins from our penguin data set.
Gentoo, Adelie, Chinstrap
What sort of variable(s) are needed for a regression analysis?
Two numeric
What type of statistical test uses t* in calculation of a confidence interval?
How do we calculate the standard error of a sample mean?
sample SD / sqrt(n)
What type of analysis were we studying when we saw this image? (Slide 2)
Paired means
What sort of variable(s) are needed for an ANOVA?
Numeric and categorical with at least 3 levels
How do you calculate a margin of error?
2 x SE
How do we determine the degrees of freedom for a Chi-squared test?
(col -1) * (rows -1)
In the laptop vs longhand dataset, at which University were the participant's students?
Princeton University