STATS Quiz Multiple Choice Questions

| August 30, 2017

Question
quiz Question 1

.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151831_1&course_id=_5753_1&content_id=_1092905_1&step=null”>

Provide an appropriate response.
Given H0: p? 80% and Ha: pProvide an appropriate response.
Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance ?.
Two-tailed test
z= 1.95
?= 0.05

A.

0.0256; reject H0

B.

0.9744; fail to reject H0

C.

0.0512; reject H0

D.

0.0512; fail to reject H0

2 points

Question 3

Provide an appropriate response.
The statement represents a claim. Write its complement and state which is H0 and which is HA.
?= 8.3

A.

H0: ?? 8.3 (claim); Ha: ? 8.3 (claim)

C.

H0: ?= 8.3 (claim); Ha: ?? 8.3

D.

H0: ?? 8.3 ; Ha: ?= 8.3 (claim)

2 points

Question 4.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151831_1&course_id=_5753_1&content_id=_1092905_1&step=null”>

Provide an appropriate response.
A researcher claims that 71% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.

A.

two-tailed

B.

right-tailed

C.

left-tailed

2 points

Question 5.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151831_1&course_id=_5753_1&content_id=_1092905_1&step=null”>

Provide an appropriate response.
The alternative hypothesis is given with its graph. State the null hypothesis and sketch its graph.

.jpg”>

Ha: ? 9

C.

H0: ?? 9

D.

H0: ?? 9
Hw

Question 1Provide an appropriate response.
The statement represents a claim. Write its complement and state which is H0 and which is HA.
?= 8.3

A.

H0: ?? 8.3 (claim); Ha: ? 8.3 (claim)

D.

H0: ?= 8.3 (claim); Ha: ?? 8.3

2 points

Question 2.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>Provide an appropriate response.
The alternative hypothesis is given with its graph. State the null hypothesis and sketch its graph.
Ha: ?

A.

H0: ?> 9

B.

H0: ?? 9

C.

H0: ?? 9

D.

H0: ?? 9
Question 3Provide an appropriate response.
A fast food outlet claims that the mean waiting time in line is less than 3.8 minutes. A random sample of 60 customers has a mean of 3.7 minutes with a population standard deviation of 0.6 minute. If ?= 0.05, test the fast food outlet’s claim.

A.

Fail to reject H0; There is not enough evidence to support the fast food outlet’s claim that the mean waiting time is less than 3.8 minutes.

B.

reject H0

2 points

Question4Provide an appropriate response.
Suppose you want to test the claim that ?Provide an appropriate response.
Given H0: ?? 25 and Ha: ?> 25, determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

A.

left-tailed

B.

right-tailed

C.

two-tailed

2 points

Question 7.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>Provide an appropriate response.
An elementary school claims that the standard deviation in reading scores of its fourth grade students is less than 3.75. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.

A.

left-tailed

B.

right-tailed

C.

two-tailed

2 points

Question 8.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>Provide an appropriate response.
The P-value for a hypothesis test is P= 0.066. Do you reject or fail to reject H0 when the level of significance is ?= 0.05?

A.

fail to reject H0

B.

not sufficient information to decide

C.

reject H0

Self check

Question 1.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>

Provide an appropriate response.
The statement represents a claim. Write its complement and state which is H0 and which is HA.
?= 8.3

A.

H0: ?? 8.3 (claim); Ha: ? 8.3 (claim)

D.

H0: ?= 8.3 (claim); Ha: ?? 8.3

2 points

Question 2

Provide an appropriate response.
The alternative hypothesis is given with its graph. State the null hypothesis and sketch its graph.
Ha: ?

A.

H0: ?> 9

B.

H0: ?? 9

C.

H0: ?? 9

D.

H0: ?? 9

2 points

Question 3

Provide an appropriate response.
A fast food outlet claims that the mean waiting time in line is less than 3.8 minutes. A random sample of 60 customers has a mean of 3.7 minutes with a population standard deviation of 0.6 minute. If ?= 0.05, test the fast food outlet’s claim.

A.

Fail to reject H0; There is not enough evidence to support the fast food outlet’s claim that the mean waiting time is less than 3.8 minutes.

B.

reject H0

2 points

Question 4

1. .open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>

Provide an appropriate response.
Suppose you want to test the claim that ? 25, determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

A.

left-tailed

B.

right-tailed

C.

two-tailed

2 points

Question 7

Provide an appropriate response.
An elementary school claims that the standard deviation in reading scores of its fourth grade students is less than 3.75. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.

A.

left-tailed

B.

right-tailed

C.

two-tailed

2 points

Question 8.open.suny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_151824_1&course_id=_5753_1&content_id=_1092833_1&step=null”>

Provide an appropriate response.
The P-value for a hypothesis test is P= 0.066. Do you reject or fail to reject H0 when the level of significance is ?= 0.05?

A.

fail to reject H0

B.

not sufficient information to decide

C.

reject H0

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