Question

If the computed value of a chi-square statistic is less than the critical chi-square value, reject the null hypothesis at a predetermined Type I error rate.

ANSWER: FALSE

WHY IS THE ANSWER TO THIS FALSE? WHAT IS THE EXPLANATION?

Answer #1

TOPIC:Testing of hypothesis.

PLEASE ANSWER ALL QUESTIONS !
1.
When performing a Chi-Square test, what is the critical value
between the accept and reject regions for a test with 5 classes and
25 observations at the 5% level of significance?
Select one:
a. 11.070
b. 2.87
c. 2.60
d. 9.488
2. True or False: A hypothesis is a statement about a population
developed for the purpose of testing.
Select one:
True
False
3. If you ACCEPT the null hypothesis while performing a
Chi-Square...

A)What is the critical value for a chi-square test with 12
degrees of freedom at the 5 percent level of significance?
B) If the chi-square test statistic were 18.549, what is your
conclusion regarding the null hypothesis?
C) What is your conclusion regarding the null hypothesis if the
chi-square value were 22.10?

a) For the given degrees of freedom, larger values of the chi
square statistic are associated with ___________
answer options:
1) there is no relationship between chi-square values and
p-values 2) larger p-values 3)smaller p-values
b) Correlation analysis revealed r = -.72. What do we already
know about the regression slope or intercept?
answer options:
1) b > 0 2) a < 0 c)a > 0 d) b < 0
c) As sample size increases, what happens to the critical...

1. You have a two-tailed test. The t critical value is 2.36 and
the test statistic is 3.11. Assume the null hypothesis is true. The
result is (a) Type I error (b) Type II error (c) Correct
decision
2. You have a right-tailed test. The t critical value is 1.74
and the test statistic is 1.46. Assume the null hypothesis is true.
The result is (a)Type I error (b) Type II error (c) Correct
decision
3. You have a right-tailed...

In a Chi-Square Independence test the test statistic is 1.88 and
the critical value is 3.84. Which of the following can we
conclude?
Reject H0 and conclude that the variables are related
Reject HO and conclude that the variables are not related
Not reject H0 and conclude that the variables are related
Not reject H0 and conclude that the variables are not
related

Assume the computed t-statistic was t0=1.987
Find the t-critical value for a one-tailed test at the 0.05
significance level with 19
degrees of freedom. Is there sufficient evidence to reject the
null hypothesis?
Find the t-critical value for a one-tailed test at the 0.05
significance level with a sample
size of 30. Is there sufficient evidence to reject the null
hypothesis?
Find the t-critical value for a two-tailed test at the 0.05
significance level with 15
degrees of freedom. Is...

please fill in and state conclusion
Calculate Chi-Square p value
Calculated Chi-square p value
0.492330692
Reject null if pvalue < alpha 0.05
Is the p
value significant?
Because
p value is smaller or bigger than alpha level of 0.05?

1) The larger the chi-square statistic, the weaker the evidence
against the null hypothesis. True or False
2) The more similar the conditional distributions in a two-way
table are, the larger the P-value of the chi-square test
becomes. True or False

31. An obtained chi square of 9.53 was calculated and the
critical chi square was 18.48. What should be concluded from these
results?
a.
The result is both statistically significant and important.
b.
The variables are independent.
c.
The null hypothesis must be rejected.
d.
The information is incomplete; nothing can be concluded.

A large value for the chi-square statistic indicates
the sample data (observed values) do not match the null
hypothesis. there is a good fit between the sample data (observed
values) and the null hypothesis. the
observed values from the sample data are consistently larger than
the expected values. the observed values from the sample data are
consistently smaller than the expected values.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 12 minutes ago

asked 41 minutes ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago