Question
In: Statistics and Probability
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on...
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on the variability of the data within groups, the sample size, and the differences among the means.
Corporate advertising tries to enhance the image of the corporation. A study compared two ads from two sources, the Wall Street Journal and the National Enquirer. Subjects were asked to pretend that their company was considering a major investment in Performax, the fictitious sportswear firm in the ads. Each subject was asked to respond to the question "How trustworthy was the source in the sportswear company ad for Performax?" on a 7-point scale. Higher values indicated more trustworthiness. Here is a summary of the results.
| Ad source | n | x | s |
|---|---|---|---|
| Wall Street Journal | 66 | 4.77 | 1.50 |
| National Enquirer | 61 | 2.43 | 1. |
Find the two-sample pooled t statistic. Then formulate
the problem as an ANOVA and report the results of this analysis.
Verify that F = t 2.
Solutions
orchestra answered 1 year agoRelated Solutions
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on...
The One-Way ANOVA applet lets you see how the
F statistic and the P-value depend on the
variability of the data within groups, the sample size, and the
differences among the means.
(a)
The black dots are at the means of the three groups. Move these
up and down until you get a configuration that gives a
P-value of about 0.01. What is the value of the F
statistic?
This answer has not been graded yet.
(b)
Now increase the...
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on...
The One-Way ANOVA applet lets you see how the F statistic and
the P-value depend on the variability of the data within groups,
the sample size, and the differences among the means. (a) The black
dots are at the means of the three groups. Move these up and down
until you get a configuration that gives a P-value of about 0.01.
What is the value of the F statistic? This answer has not been
graded yet. (b) Now increase the...
The One-Way ANOVA applet lets you see how the F statistic and the P-value depend on...
The One-Way ANOVA applet lets you see how the
F statistic and the P-value depend on the
variability of the data within groups, the sample size, and the
differences among the means.
(a)
The black dots are at the means of the three groups. Move these
up and down until you get a configuration that gives a
P-value of about 0.01. What is the value of the F
statistic?
(b)
Now increase the variation within the groups by sliding the...
How do we use the F table to conduct a one-way ANOVA?
How do
we use the
F table to conduct a one-way ANOVA?
what's the best way to find the p value from the test statistic?
what's the best way to find the p value from the test
statistic?
The degrees of freedom for the F test in a one-way ANOVA, with n observations and...
The degrees of freedom for the F test in a one-way ANOVA, with n
observations and k independent samples, are:
Select one:
a. (n - 1) and (n - k)
b. (k - n) and (k - 1)
c. (k - n) and (n - 1)
d. (k - 1) and (n - k)
Can you name an advantage two-way anova has over a one-way anova?
Can you name an advantage two-way anova has over a one-way
anova?
Between groups One way ANOVA A researcher wants to see expand on the study that looks...
Between groups One way ANOVA
A researcher wants to see expand on the study that looks at
music’s effect on studying. She has three groups and has each group
listen to different genres. All groups are studying a list of words
while listening to music and then write down how many words they
remember. She collects the following data:
Group listening to Run The Jewels:
7, 9, 7, 5, 6, 5, 8
Group listening to Arctic Monkeys:
7, 5, 4,...
Discuss the applications of ANOVA (One-Way ANOVA, Two-Way ANOVA) and regression techniques in the context of...
Discuss the applications of ANOVA (One-Way ANOVA, Two-Way ANOVA)
and regression techniques in the context of e-commerce firms like
Amazon, Flipkart etc.
For an ANOVA tell me whether the F-ratio and P value will in-crease or decrease under...
For an ANOVA tell me whether the F-ratio and P value
will in-crease or decrease under the following
circumstances.
(a)The group sum of squares increases.
(b)The among group mean square increases.
(c)The within group sum or squares
decreases.
(d)The within group mean square decreases.
I'm having trouble understanding conceptually how this
works.
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