Question

On the following random samples of social class, test the null
hypothesis that neighborliness does not vary by social class.
(Note: Higher scores indicate greater neighborliness.) **ANS:
F =2.72 (observed); 3.49 (critical), df = 3, 12 .05
LOS.**

Lower Working Middle Upper

8 7 6 5

4 3 5 2

7 2 5 1

8 8 4 3

State the research problem

State the null and the alternative hypotheses (written and symbolically)

State the decision rule? (.05 LOS)

Calculate the F value

What is the decision?

What is your conclusion (interpretation)?

Supply the source table to support your findings.

Answer #1

Ans:

We want to know if there is difference in neighborliness depending on the social class.

H_{0}: There is **no difference** in
neighborliness depending on the social class.

H_{a}:There **is difference** in
neighborliness depending on the social class.

critical F value=FINV(0.05,3,12)=**3.49**

F value=2.72

(refer below anova table)

Decisio:

**Fail to reject the null hypothesi**s.(as
F<3.49)

Conclusion:

**There is not sufficient evidence to conclude that
neighborliness does not vary by social class**

5. The results of a state mathematics test for random samples of
students taught by two different teachers at the same school are
shown below. Can you conclude there is a difference in the mean
mathematics test scores for the students of the two teachers? Use
α= 0.01. In addition, assume the populations are normally
distributed and the population variances/standard deviations are
not equal.
State the null and alternate hypotheses (write it
mathematically) and writeyour claim.
Find the standardized test...

Given the following sample information, test the hypothesis that
the treatment means are equal at the 0.05 significance level.
Treatment 1
Treatment 2
Treatment 3
3
9
6
2
6
3
5
5
5
1
6
5
3
8
5
1
5
4
4
1
7
4
6
4
(a) State the null hypothesis and the alternate hypothesis. Ho :
?1 (>, <, or =) incorrect ?2 = (<,>, or =) ?3. H1 :
Treatment means are not ___ all...

The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.02 significance level.
Treatment 1
Treatment 2
Treatment 3
7
2
5
8
3
7
6
5
10
7
3
6
a. State the null hypothesis and the alternate
hypothesis.
H0:
(The treatment
means are not all the same or The treatment means are the
same?)
H1:
(The treatment
means are not all the same or The treatment means are...

The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.01 significance level.
Treatment 1
Treatment 2
Treatment 3
10
7
8
8
8
7
6
8
6
9
4
8
a. State the null hypothesis and the alternate
hypothesis.
H0:
(Click to
select) The treatment means are the same. The
treatment means are not all the same.
H1:
(Click to
select) The treatment means are the same. The
treatment means are not all...

The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.02 significance level.
Treatment 1
Treatment 2
Treatment 3
3
10
4
8
6
6
3
9
3
5
7
10
a. State the null hypothesis and the alternate
hypothesis.
H0:
(Click to
select) The treatment means are not all the
same. The treatment means are the same.
H1:
(Click to
select) The treatment means are the same. The
treatment means are not all...

A standardized test is given to a sixth grade class and a ninth
grade class. The superintendent believes that the variance in
performance from the sixth grade class is different than the
variance in performance from the ninth grade class. The sample
variance of a sample of 16 test scores from the sixth grade class
is 23.64. The sample variance of a sample of 10 test scores from
the ninth grade class is 14.9. Test the claim using a 0.05...

The following is sample information. Test the hypothesis that
the treatment means are equal. Use the 0.01 significance level.
Treatment 1
Treatment 2
Treatment 3
10
4
3
4
5
5
9
5
6
7
9
6
a. State the null hypothesis and the alternate
hypothesis.
H0:
(Click to
select) The treatment means are not all the
same. The treatment means are the same.
H1:
(Click to
select) The treatment means are the same. The
treatment means are not all...

Chi-Square: Sample Questions
1. A social worker wants to know if the rate of depressive
episodes differs by the time of
year. Using the data collected by a large hospital, the social
worker records the number
of first-time admissions for depression that occurred during the
past 5 years. The social
worker divides the year into four seasons. The number of
first-time admissions are as
follows:
Spring
495
Summer
503
Autumn
491
Winter
581
Conduct an appropriate statistical test using alpha...

1. A one-factor ANOVA for independent samples conducted on 4
experimental groups, with n = 8 participants in each group,
produces the following partial outcomes: SSbetween = 36, SSwithin =
84. For this analysis, what is the computed F statistic?
A. F = 3
B. F = 12
C. F = 8
D. F = 6
E. F = 21
F. F = 4
2. A researcher reports an outcome of one factor ANOVA for
independent samples as F(2, 36)...

A social researcher is interested in studying the relationship
between racial bias and political party affiliation. A sample of
voters were given an implicit bias test with higher scores
indicating more implicit, racial bias. Use an ANOVA to analyze her
data. Republicans Independents Democrats 8 6 4 7 3 2 6 6 1 8 3 3 5
4 5 7 2 2 9 5 4 3 8 6 4 7 2 5 4 2 Answer the following
questions.
1. What...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 6 minutes ago

asked 9 minutes ago

asked 14 minutes ago

asked 15 minutes ago

asked 25 minutes ago

asked 45 minutes ago

asked 46 minutes ago

asked 46 minutes ago

asked 59 minutes ago

asked 59 minutes ago

asked 1 hour ago