Why is the F statistic also called an F ratio? Select one: a. It is the...
Why is the F statistic also called an F ratio?
Select one:
a. It is the ratio of the sum of squares to the means
b. It is the ratio of degrees of freedom
c. It is the ratio of one group mean to another.
d. It is the ratio of the mean square between to the mean square within.
Homework Answers
Answer is
(d) It is the ratio of the mean square between to the mean square within.
F = MSB / MSE
F ratio is the ratio of variance between the groups to the variance within the groups. If variance between the groups is significantly more than variance within the groups, then F test result is significant , we can conclude that the mean of all the groups are not equal .
Add Answer to:
Why is the F statistic also called an F ratio?
Select one:
a. It is the...
QUESTION 12 Why is the F statistic also called an F ratio? a. It is the...
QUESTION 12 Why is the F statistic also called an F ratio? a. It is the ratio of one group mean to another. b. It is the ratio of the mean square between to the mean square wibitin. c. It is the ratio of the within-group sum of squares to the between-group sum of squares d. It is the ratio of degrees of freedom for the within group sum of squares to the degrees of freedom for the between-group sum...
Please help with the following multiple choice 1. In the one-way ANOVA where there are k...
Please help with the following multiple choice 1. In the one-way ANOVA where there are k treatments and n observations, the degrees of freedom for the F-statistic are equal to, respectively: a. n and k. b. k and n. c. n − k and k − 1. d. k − 1 and n − k. 2. In ANOVA, the F-test is the ratio of two sample variances. In the one-way ANOVA (completely randomized design), the variance used as a numerator...
#16 The test statistic is a. 6.00. b. 2.25. c. 3.00. d. 2.67. #17 The mean...
#16
The test statistic is
a.
6.00.
b.
2.25.
c.
3.00.
d.
2.67.
#17
The mean square due to error (MSE) is
a.
60.
b.
18.
c.
15.
d.
20.
Part of an ANOVA table is shown below. Sum of Degrees Squares Freedom Mean of Source of Variation Square 180 Between Treatments Within Treatments (Error) TOTAL 480 18
21) Consider the partially completed one-way ANOVA summary table. Degrees of Mean Sum Freedom of Squares...
21) Consider the partially completed one-way ANOVA summary table. Degrees of Mean Sum Freedom of Squares Sum of Source Squares Between 330 Within Total 1810 1 16 9 The F-test statistic for this ANOVA procedure is A) 2.33 B) 7.33 C) 5.67 D) 3.67
Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the...
Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the table. b) How many population means are being tested? c) Using alphaαequals=0.010.01, what conclusions can be made concerning the population means? Source Sum of Squares Degrees of Freedom Mean Sum of Squares F Between 129129 ? ? ? Within ? 2020 ? Total 269269 2323 LOADING... Click the icon to view a table of critical F-scores. a) Complete the ANOVA table below. Source Sum...
Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the...
Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the table. b) How many population means are being tested? c) Using a = 0.05, what conclusions can be made concerning the population means? Sum of Squares Degrees of Freedom Mean Sum of Squares w Source Between Within Total Click the icon to view a table of critical F-scores for a = 0.05. a) Complete the ANOVA table below. Sum of Degrees of Mean Sum...
5. Identify the following: k (number of groups or samples) N, (number of cases within each...
5. Identify the following: k (number of groups or samples) N, (number of cases within each group or sample) N (total number of cases) df (between-groups degrees of freedom)= How is it calculated? df (within-groups degrees of freedom) How is it calculated? critical value for F (using the F table) SSB (Sum of Squares Between groups) = ssw (Sum of Squares Within groups) Mean square between= How is it calculated? Mean square within= How is it calculated? F ratio (test...
Refer to the following partial one-factor ANOVA results from excel (some information is missing. And you...
Refer to the following partial one-factor ANOVA results from excel (some information is missing. And you need to work it out in the questions below.) Now, the F statistic is equal to: Source of Variation Sum of Squares Degrees of Freedom Mean Square F statistic Between Groups 210.2788 Within Groups 1483 74.15 Total 2113.833 4.79 3.56 1.15 2.84 Referring to the table in question 1. The sum of squares for between groups variation is: 129.99 630.83 1233.4 We cannot tell...
Source of Variation Sum of Squares Degrees of Freedom Mean Square F Between Treatments 64 8...
Source of Variation Sum of Squares Degrees of Freedom Mean Square F Between Treatments 64 8 Within Treatments 2 Error Total 100 The conclusion of the test is that the means are equal may be equal are not equal None of these alternatives are correct.
HW Chapter 8 [Spring 2019] Started: Mar 17 at 7:24pm Quiz Instructions Question 16 1 pts...
HW Chapter 8 [Spring 2019] Started: Mar 17 at 7:24pm Quiz Instructions Question 16 1 pts The mean square is: O all of the provided answers D calculated by dividing the sum of squares between by the degrees of freedom between. calculated by dividing the sum of squares within by the degrees of freedom within. is a method for assessing variation in conjunction with the sums of squares measures. Previous Next HW Chapter 8 [Spring 2019] Started: Mar 17 at...
QUESTION 12 Why is the F statistic also called an F ratio? a. It is the ratio of one group mean to another. b. It is the ratio of the mean square between to the mean square wibitin. c. It is the ratio of the within-group sum of squares to the between-group sum of squares d. It is the ratio of degrees of freedom for the within group sum of squares to the degrees of freedom for the between-group sum...
#16
The test statistic is
a.
6.00.
b.
2.25.
c.
3.00.
d.
2.67.
#17
The mean square due to error (MSE) is
a.
60.
b.
18.
c.
15.
d.
20.
Part of an ANOVA table is shown below. Sum of Degrees Squares Freedom Mean of Source of Variation Square 180 Between Treatments Within Treatments (Error) TOTAL 480 18
21) Consider the partially completed one-way ANOVA summary table. Degrees of Mean Sum Freedom of Squares Sum of Source Squares Between 330 Within Total 1810 1 16 9 The F-test statistic for this ANOVA procedure is A) 2.33 B) 7.33 C) 5.67 D) 3.67
Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the table. b) How many population means are being tested? c) Using a = 0.05, what conclusions can be made concerning the population means? Sum of Squares Degrees of Freedom Mean Sum of Squares w Source Between Within Total Click the icon to view a table of critical F-scores for a = 0.05. a) Complete the ANOVA table below. Sum of Degrees of Mean Sum...
5. Identify the following: k (number of groups or samples) N, (number of cases within each group or sample) N (total number of cases) df (between-groups degrees of freedom)= How is it calculated? df (within-groups degrees of freedom) How is it calculated? critical value for F (using the F table) SSB (Sum of Squares Between groups) = ssw (Sum of Squares Within groups) Mean square between= How is it calculated? Mean square within= How is it calculated? F ratio (test...
HW Chapter 8 [Spring 2019] Started: Mar 17 at 7:24pm Quiz Instructions Question 16 1 pts The mean square is: O all of the provided answers D calculated by dividing the sum of squares between by the degrees of freedom between. calculated by dividing the sum of squares within by the degrees of freedom within. is a method for assessing variation in conjunction with the sums of squares measures. Previous Next HW Chapter 8 [Spring 2019] Started: Mar 17 at...
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