Math 208 6 2 35 Elementary Statistics Tutorial Normal Distributions Invnorm

... on the right when we use the

...

A firm's marketing manager believes that total sales for next year will follow the

... two tails so if we divide that by

Question 23 is different from the previous questions because we are no longer looking at the standard

On question 18 they provide the area on the right now we need to know the area on the left because the

The monthly utility bills in a city are

On question 19 we are given an area on the right so we need to type

Find the z-score that corresponds to the cumulative area so 29 is 0.4364 the picture looks like this we would type

On question 24 we are looking at a

... of that to get the right z-score so

... that we can use the

Sat

... percent of the distribution's area to its left so our picture looks like this and we would type

The next topic is the

Last section we were focusing on the standard

This

Math 208 : 6.2 #2 (Elementary Statistics Tutorial : Normal Distributions, normalcdf)

... so the probability is actually exactly half so it should be point five or fifty percent but let's do the