Statistics

Discrete

- Counting

How many…?

Continuous –

measuring

How much…?

ISDS 2710 Flowchart

Sampling

Looking at

survey

information

Binomial

#successes in a set of

trials

Poisson

#arrivals in a fixed time

period

Hypergeometric

# of each type pulled

from a group of

multiple types

Uniform

Min/max known

Normal

Symmetry

Exponential

Time between

successive arrivals

Sample means

Comparing a historical

population with a

recently sample mean

Sample Proportions

Comparing a historical

proportion with a

recently sampled value

Confidence Interval

Means

σ known

(Use standard normal

table)

Confidence Interval

Means

σ unknown

(Use t-table)

Confidence Interval

Proportions

(Use standard normal

table)

Hypothesis testing