Question

In a one-way ANOVA, what does it mean to reject the statement in the null hypothesis if three treatment groups are being compared? Choose the correct answer below. A. Rejecting the statement in the null hypothesis means that there is insufficient evidence to conclude that the mean of one of the populations is different than the other two or that all three populations are different. B. Rejecting the statement in the null hypothesis means that there is sufficient evidence to conclude that the means of all three populations are different. C. Rejecting the statement in the null hypothesis means that there is sufficient evidence to conclude that the mean of one of the populations is different than the other two or that all three populations are different. D. Rejecting the statement in the null hypothesis means that one of the conditions for performing a one-way ANOVA was not met.

Answer #1

For one way ANOVA, the hypothesis is :

H0 : 1 = 2 = 3 vs

H1: At least one mean is not equal to that of other two or all three are different.

And here we are rejecting H0. That is we are supporting H1, that is at least one mean is not equal.

Hence the correct option is -

**C. Rejecting the statement in the null hypothesis
means that there is sufficient evidence to conclude that the mean
of one of the populations is different than the other two or that
all three populations are different.**

**Hope this will help you. Thank you
:)**

1. In one-way ANOVA, involving three groups, the alternative
hypothesis would be considered correct if, in the population,
a. all means were equal
b. two means are equal but the third is different
c. all three means have different values
d. either (b) or (c) above is true
QUESTION 2 When Null is true for a one-way ANOVA, variation of
the group means is a reflection of
a. inherent variation
b. differential treatment effects
c. nondifferential treatment effects
d. a...

The null and alternative hypotheses for a one-way ANOVA
test are:
*Suppose that in reality the null hypothesis is false.
Does this mean that no two of the populations have the same mean?
Please explain your answer.

1. Which of the following statements are true of One-way
ANOVA test?
a. It is a robust test (with sufficiently large samples and
relatively equal groups) even when the sample data are
statistically significantly different from normal distribution.
b. All of the other statements are correct.
c. It involves a dependent variable measured on a continuous
scale.
d. It involves an independent variable measured on a categorical
scale with 2+ groups/categories.
e.It compares the mean/average scores of the 2+ groups...

If there are three groups, null hypothesis for the one-way ANOVA
is
a) H0:μ1 = μ2 >
μ3
b) H0:Μ1 = Μ2 =
μ3
c) H0:μ1 = μ2 =
μ3
d) H0:Μ1 = Μ2 =
Μ3

Is there any difference between a Factorial ANOVA and a One-Way
ANOVA?
Yes, a Factorial ANOVA has 2+ IVs, whereas a One-Way ANOVA has
only 1 IV.
Yes, the main purpose of a Factorial ANOVA is to test if two or
more groups are significantly different from each other, whereas a
One-Way ANOVA compares means across two or more independent
variables.
No, both tests are the same.
Yes, Factorial ANOVA results in the calculation of three F
ratios, whereas two...

The results of a one-way ANOVA are reported below.
Source of variation
SS
df
MS
F
Between groups
7.18
3
2.39
21.73
Within groups
48.07
453
0.11
Total
55.25
456
How many treatments are there in the study?
What is the total sample size?
What is the critical value of F if p = 0.05?
Write out the null hypothesis and the alternate
hypothesis.
What is your decision regarding the null hypothesis?
Can we conclude any of the treatment means...

Suppose a growing health and wellness company is rolling out
three new nutritional diet plans. The research department wants to
test the effectiveness of these three new nutritional plans, a
low-fat plan and a low-carb plan, as well as its standard
low-calorie plan. Marcia, a nutrition researcher with the company,
randomly assigns 24 new weight loss program participants to each of
the three plans, assigning 8 to each plan. After administering the
plans, she follows up with the participants a...

Suppose a growing health and wellness company is rolling
out three new nutritional diet plans. The research department wants
to test the effectiveness of these three new nutritional plans, a
low-fat plan and a low-carb plan, as well as its standard
low-calorie plan. Marcia, a nutrition researcher with the company,
randomly assigns 18 new weight loss program participants to each of
the three plans, assigning 6 to each plan. After administering the
plans, she follows up with the participants a...

True or False: For all hypothesis tests, a small p-value means
we will reject the null.
True or False: If you are testing the means of two groups, then
you would use ANOVA.
True or False: A two-sample confidence interval must capture
zero to show the groups are different.
True or False: The test statistic for ANOVA is the
f-statistic.
True or False: For Chi-Square tests, if the observed counts and
expected counts are extremely different, then we would have...

Question 9
If you conduct a
One-Way ANOVA in SPSS and it is significant, which of the following
statements is true?
not all population
means are equal
it does not indicate
which groups significantly differ from others
all statements are
true
reject the null
hypothesis
Question 7
In an ANOVA, the
higher the F ratio, the more likely you are to
make a Type I
Error
make a Type II
Error
correctly reject the
null hypothesis
correctly accept the
null...

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