Name: ____________________________________________
17 September 2008
IE330 Spring 2008
Test 1a
No calculators, closed book, closed notes.
Do not tear off any pages.
Once you are finished, turn in the test and leave quietly.
1 of 9
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Name: ____________________________________________
1.
(True or
False) For a hypothesis test, regardless of which conclusion is drawn the
probability that a type I error has been made is equal to α.
(If you fail to reject the
null hypothesis, no type I error can be made.)
2.
(
True or False) For a twosided test, if the test statistic Z
0
is greater than Z
α/2
or
less than –Z
α/2
then we can reject the null hypothesis.
3.
Suppose we conduct a hypothesis test on a mean, and the test statistic Z
0
is found
to be 9.6 with α = 0.05.
For which of the following null hypotheses is the
conclusion correct (choose all that are correct)?
a.
H0:
μ
= 0; Fail to reject H0
b.
H0:
μ
= 0; Reject H0
c.
H0:
μ
= 50; Fail to reject H0
d.
H0:
μ
= 50; Reject H0
e.
We cannot draw any of these conclusions from the data provided.
(Once you have Z
0
, the hypothesized mean doesn’t matter, you just
compare it to the critical values.)
4.
(
True or False) When given the value of
the test statistic Z
0
, we can obtain the p
value from the standard normal distribution (Z) table.
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '11
 Jake
 Null hypothesis, Statistical hypothesis testing, 1%, 70 lbs

Click to edit the document details