Statistics Day 1-13

Proc SgPlot

graph first line

Vbar

bar graph 2nd Line

Hbox

horizontal wisker plot 2nd line

Histogram

histogram 2nd line

Var

variable

Data Input Cards

first 3 lines

Proc Univariate Data

applies mean and other variables

1st Quartile

25% of data at or below value

3rd Quartile

75% of data at or above value

IQR

the range for the middle 50% of the data

Resistant

if a statistic is not greatly impacted by unusual values

Skewed

the direction of the lower side of the graph

X Bar

mean

z-score

observations - mean / Standard Deviation

Distribution

valuables that variables takes on and the frequency at which they are observed

Uniform

data is evenly distributed across the number line with each smaller range occurring with similar frequency

Proc Means

data summarization, can calculate mean, median, STD, n data

N

total number of observations in a population

n

sample size

Alternative Hypothesis

a claim that there is an effect or a relationship between variables

Stratified Random Sample

selecting a random sample from existing subgroups

Cluster Random Sample

selecting a random sample of existing subgroups in the population then taking randomly selected units in the subgroup