Example Quiz #4: Statistics - Math 340
This quiz has been retired.
It is not being used for the internet version of Math 340 anymore.
This is test has
multiple choice, True/False, and fill in the blank answers. Select the
that BEST represents the correct
Put your answers in a Word Document and INCLUDE AN
EXPLANATION OF ALL YOUR
CALCULATIONS. I will give partial credit if you were
doing a math problem the
right way but made a silly error (we all do this - myself
Please INCLUDE YOUR
NAME IN THE FILE YOU SEND TO ME!
The bare minimum
requirement is to send me an email with your answers by October 4,
If there are
any questions, contact me immediately!
1. Which of the following is not one
of the properties of the Normal Distribution?
a. It is
b. It is symmetrical about the mean
c. It is bimodal
d. The curve is continuous
2. The z-value is actually just the
number of standard deviations that a particular X-value is away from the
Use the tables in Appendix C to
answer the following questions:
3. Find the area between z = 1.2 and
z = 2.4
4. Find the area between z = -0.6 and
z = -1.9
5. Find the area to the right of z =
6. Find the area to the left of -2.21
7. The average hourly wage of workers
at a fast-food restaurant is $5.85 with a standard deviation of $0.35.
Assume that the distribution is normally distributed. If a worker at
this restaurant is selected at random, what is the probability that the
worker makes more than $6.50 an hour?
8. At the same restaurant, what is
the probability that a worker, selected at random, will make less than $5.50