Box Plots
Name the five parts of a box plot
Minimum, First quartile, Median, Third Quartile, and Maximum
What do all events in a sample space add up to?
1
What is P(Type II Error)
Power
What method uses sample members from a population selected according to a random starting point and a fixed, periodic interval?
A systematic Random Sample
What point doesn't follow the general trend shown in the rest of the data and has a large residual?
Outlier
What percentage of the data is contained between Q1 and Q3?
50%
What formula is used for union?
What is the formula for expected counts?
(row total)(column total)/table total
What design consists of treatments assigned to experimental units completely at random?
A completely randomized design
What variable takes on values that are category names or group labels?
Categorical variables
What is the formula to calculate outliers?
1.5(interquartile range) +/- point
What law states that simulated probabilities tend to get closer to the true probability as that number of trials increases?
The Law of Large Numbers
what is the formula to find a z-score?
(value-mean)/standard deviation
What design uses subjects arranged in pairs matched on one or more relevant factors?
A Matched Pairs Design
What variable gives the strength and direction of the linear relationship between 2 quantitative variables?
Correlation (r)
If the distance from the median to minimum is greater than the distance from the median to the maximum, then the box plot is _______ skewed.
Negatively
Which random variable distribution has a fixed number of trials?
Binomial
x +/- t* s/square root of n
Confidence Interval formula
What is a collection of experimental units that are either not given a treatment of interest or given a treatment with an inactive substance?
Control Group
What is the formula for slope?
y = a + bx
What does a box plot not show about a distribution?
The shape
What is the P(A|B)=[P(AandB)]/P(B) formula used for?
Conditional Probability
b+/- t*SEb
CI formula t-interval for slope
What is a systematic tendency to overestimate or underestimate the true population parameter?
Bias
What is a point that if removed, changes the relationship substantially?
An influential point