20. The following data summarize the results from anindependent-measures study comparing three treat-ment conditions.M = 2M = 3M = 4n = 10n = 10n = 10T = 30T = 20T = 40s2 = 2.67s2 = 1.33s? = 2.00a. Use an ANOVA with a = .05 to determinewhether there are any significant differencesamong the three treatment means. Note: Becausethe samples are all the same size, MSaverage of the three sample variances.b. Calculate n? to measure the effect size for thisstudy.is thewithin 18. The following data were obtained from an inde-pendent-measures study comparing three treatmentconditions.TreatmentIIII38.N = 12G = 48EX = 23836.46.M = 4M = 2M = 6T = 8T = 24T = 16SS = 2SS = 8SS = 421a. Calculate the sample variance for each of the threesamples.b. Use an ANOVA with a = .05 to determinewhether there are any significant differencesamong the three treatment means.

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Asked Jan 18, 2020
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20. The following data summarize the results from an
independent-measures study comparing three treat-
ment conditions.
M = 2
M = 3
M = 4
n = 10
n = 10
n = 10
T = 30
T = 20
T = 40
s2 = 2.67
s2 = 1.33
s? = 2.00
a. Use an ANOVA with a = .05 to determine
whether there are any significant differences
among the three treatment means. Note: Because
the samples are all the same size, MS
average of the three sample variances.
b. Calculate n? to measure the effect size for this
study.
is the
within
help_outline

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20. The following data summarize the results from an independent-measures study comparing three treat- ment conditions. M = 2 M = 3 M = 4 n = 10 n = 10 n = 10 T = 30 T = 20 T = 40 s2 = 2.67 s2 = 1.33 s? = 2.00 a. Use an ANOVA with a = .05 to determine whether there are any significant differences among the three treatment means. Note: Because the samples are all the same size, MS average of the three sample variances. b. Calculate n? to measure the effect size for this study. is the within

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18. The following data were obtained from an inde-
pendent-measures study comparing three treatment
conditions.
Treatment
II
II
3
8.
N = 12
G = 48
EX = 238
3
6.
4
6.
M = 4
M = 2
M = 6
T = 8
T = 24
T = 16
SS = 2
SS = 8
SS = 4
21
a. Calculate the sample variance for each of the three
samples.
b. Use an ANOVA with a = .05 to determine
whether there are any significant differences
among the three treatment means.
help_outline

Image Transcriptionclose

18. The following data were obtained from an inde- pendent-measures study comparing three treatment conditions. Treatment II II 3 8. N = 12 G = 48 EX = 238 3 6. 4 6. M = 4 M = 2 M = 6 T = 8 T = 24 T = 16 SS = 2 SS = 8 SS = 4 21 a. Calculate the sample variance for each of the three samples. b. Use an ANOVA with a = .05 to determine whether there are any significant differences among the three treatment means.

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Expert Answer

Step 1

a)

The null and alternative hypotheses are shown below:

Statistics homework question answer, step 1, image 1
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Step 2

The level of the significance is 0.05.

The critical region is obtained as shown below:

Statistics homework question answer, step 2, image 1
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Step 3

Critical value for (2, 27) with the level of significance 0.05 ...

Statistics homework question answer, step 3, image 1
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