Question

A researcher records the following data for each of three groups. Group A Group B Group...

A researcher records the following data for each of three groups.

Group A Group B Group C
13 9 10
8 4 2
4 14 8
4 8 12
11 5 8


What is the value of the F-statistic? (Round your answer to two decimal places.)
F =

Explain your answer.

F is the indicated value because the groups means are different. There is substantial variability between groups.F is the indicated value because the group means are different. There is no variability between groups.    F is the indicated value because the group means are the same. There is no variability between groups.F is the indicated value because the group means are the same. There is substantial variability between groups.

Homework Answers

Answer #1
Anova: Single Factor
SUMMARY
Groups Count Sum Average Variance
Group A 5 40 8 16.5
Group B 5 40 8 15.5
Group C 5 40 8 14
ANOVA
Source of Variation SS df MS F P-value F crit
Between Groups 0 2 0 0 1 3.885294
Within Groups 184 12 15.33333
Total 184 14

__________________________________________________________

F-stats = 0

__________________________________________________________

  F is the indicated value because the group means are the same. There is no variability between groups

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A researcher records the following data for each of three groups. Group A Group B Group...
A researcher records the following data for each of three groups. Group A Group B Group C 11 14 11 13 6 10 6 4 8 5 9 4 10 12 12 What is the value of the F-statistic? (Round your answer to two decimal places.) F = Explain your answer. __F is the indicated value because the groups means are different. There is substantial variability between groups. ___F is the indicated value because the group means are the same....
A researcher records the following data for each of three groups. Group A Group B Group...
A researcher records the following data for each of three groups. Group A Group B Group C 3 5 11 7 9 1 9 3 11 9 9 7 12 14 10 What is the value of the F-statistic? (Round your answer to two decimal places.) F =   Explain your answer. F is the indicated value because the group means are the same. There is no variability between groups.F is the indicated value because the group means are the same....
A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with...
A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with high cholesterol levels. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, each subject's cholesterol level is recorded. Determine the test statistic F-value to test the hypothesis that there is no difference among the means....
The table below presents three samples of data. If we conduct a hypothesis test for the...
The table below presents three samples of data. If we conduct a hypothesis test for the equality of all three means with the statistical confidence of 90%, what would the value of the Mean Squares Between Groups be? Sample 1 Sample 2 Sample 3 7 11 6 5 8 5 7 11 4 6 7 5 6 13 14 6 13 5 6 12 5 6 11 6 8 8 8 9 7 6 7 6 14 9 7 4...
8) Arnold compares the means of three groups and calculates a value of -2.01 for the...
8) Arnold compares the means of three groups and calculates a value of -2.01 for the F ratio. This necessarily implies that. . Group of answer choices a. the mean of the first group is the highest of the three groups b. the mean of the third group is the highest of the three groups c. the differences between the means are statistically significant d. he made an error is his calculation 9) The problem with conducting multiple t-tests instead...
C. A researcher uses ANOVA to test 4 groups with n=13 in each group and obtains...
C. A researcher uses ANOVA to test 4 groups with n=13 in each group and obtains an F=2.85. Is this value sufficient to reject the null with alpha = 0.05? Provide the degrees of freedom values, the critical region value, and your decision regarding the null hypothesis. Put your final answer in APA format D. Is this value (F= 2.85) Sufficient to reject the null with alpha 0.01? provide the degrees of freedom values, the critical region value, and your...
The table below presents three samples of data. Please conduct a test for the equality of...
The table below presents three samples of data. Please conduct a test for the equality of the three population means with 90% confidence. Sample 1 Sample 2 Sample 3 7 11 6 5 8 5 7 11 4 6 7 5 6 13 14 6 13 5 6 12 5 6 11 6 8 8 8 9 7 6 7 6 14 9 7 4 8 8 8 8 9 13 9 6 10 8 11 14 8 9 14...
Here is a link to a data set concerning treatment groups A and B. Before performing...
Here is a link to a data set concerning treatment groups A and B. Before performing a t-test to determine if the two groups are different, researchers must first ascertain if the variance in the two groups is the same using an F test. Indicate whether the hypothesis below is the null or alternate hypothesis for the F test. null The variance in group A is equal to the variance in group B Calculate the F statistic for this data...
please state in complete sentence A researcher studied three computer keyboard designs. Three samples of individuals...
please state in complete sentence A researcher studied three computer keyboard designs. Three samples of individuals were given material to type on a particular keyboard, and the number of errors committed by each participant was recorded. Are there significant differences in typing performance among the three keyboard designs? Keyboard A       Keyboard B        Keyboard C    0          6                       6    4          8       5    0      5                       9    1                           ...
A video game developer is testing a new game on three different groups. Each group represents...
A video game developer is testing a new game on three different groups. Each group represents a different target market for the game. The developer collects scores from a random sample from each group. The results are shown below Group A Group B Group C 98 153 102 104 149 108 99 155 195 109 115 183 111 128 160 What is the Critical Value of F Statistics (at p-value = 10%) to test the null hypothesis that group means...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT