The null-hypothesis and the alternative hypothesis in math language and in English.
a. Identify the claim.
b.
Make a sketch appropriate for the problem. In the center of your normal curve, label with
the mu or p as appropriate and the correct value for this test.
Use alpha= 0.05 unless a significance level is specified.
d. State the test you are choosing to use in the calculator or with the tables.
e.
Run the test. Record the p-value for each problem. Also record the z-test, t-test, p-test, F-
test or Chi-squared test value for the test you are running.
Make your Decision.
Correctly phrase your conclusion/summary. This must reference the claim.
f.
g.
1. Incoming first-year students at a particular college are required to take a mathematics placement
exam. As an experiment, six randomly selected students are given the exam, and then they
participate in a 3-hour refresher class. These six students are then given a retest. Is there sufficient
evidence at the 0.05 level of significance that the refresher class helped?
Student 1
Before
After
2
10
12
3
16
15
4
12
25
15
15
5
22
12
12
6
18
17
7
20
20
