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Hypothesis Testing

Total questions: 10

Worksheet time: 38mins

Name
Class
Date
1.
Define a Type I error?
a)
The failure to reject a false null hypothesis
b)
Rejecting a true null hypothesis
c)
The acceptance to reject a null hypothesis
d)
Accepting a true null  hypothesis
2.

Suppose the P-value for a hypothesis test is 0.0304. Using a = 0.05, what is the appropriate conclusion?

a)

a) Reject the null hypothesis

b)

b) Reject the alternative hypothesis

c)

c) Fail to reject the null hypothesis

d)

d) Fail to reject the alternative hypothesis

3.
The weight of the average 6th grade student's backpack (with books in it) is 18.4 lbs. The principal of the school thinks that the backpack does not weight 18.4 lbs. What is the null and alternate hypothesis? 
a)
H0 = 18.4
Ha = 18.4
b)
H0 = 18.4
Ha > 18.4
c)
H0 = 18.4
Ha < 18.4
d)
H0 = 18.4
Ha ≠ 18.4
4.
Which of the following is the FIRST step of a hypothesis test?
a)
Check assumptions & conditions
b)
Find your test statistic
c)
State your conclusion
d)
State your null & alternative hypotheses
5.

The null and alternative hypothesis can be the same.

a)

Yes

b)

No

c)

Maybe

d)

All the above

6.

At the Chrysler manufacturing plant, there is a part that is supposed to weigh precisely 19 pounds. The engineers take a sample of parts and want to know if they meet the weight specifications. What are our null and alternative hypotheses?

a)

Ho : μ = 17, Ha : μ ≠ 19

b)

Ho : μ = 19, Ha : μ ≠ 19

c)

Ho : μ = 19, Ha : μ ≠ 17

d)

Ho : μ = 17, Ha : μ ≠ 17

7.
In a research report, the term "significant" is used when the null hypothesis is rejected.
a)
True
b)
False
8.

When p-value is greater than alpha we:

a)

Reject Ho

b)

Fail to reject Ha

c)

Fail to reject Ho

d)

Reject Ha

9.

H0: μ = k

H1: μ ≠ k

a)

Left-tailed test

b)

Two-tailed test

c)

Right-tailed test

10.

Which test hypothesis states that there is no difference between two parameters?

a)

Null hypothesis

b)

Point hypothesis

c)

Significance hypothesis

d)

Alternative hypothesis