R’s Normal Distribution Alphabet

Lab 2I

Directions: Follow along with the slides and answer the questions in red font in your journal.

Where we’re headed

Get set up

Is it normal?

Using the normal model

pnorm(____, mean = diff_mean, sd = ____)

Extreme probabilities

1 - pnorm(____, mean = diff_mean, sd = ____)

Simulating normal draws

draws <- rnorm(____, mean = ____, sd = ____)
histogram(draws, fit = ____)

P’s and Q’s

qnorm(____, mean = ____, sd = ____)

On your own

Conduct one of the statistical investigations below: