had 2 take 2 pictures. Please answer all blanks... and last one Score: 18 21. Ch

Question

had 2 take 2 pictures. Please answer all blanks... and last one

Score: 18 21. Chapter 13, Problem 18 Aa Aa The following data were obtained from an independent-measures study comparing three treatment conditions. N= 12 G-48 3 8 3. 5 3 6 M-2 T=8 Ss-4 M-6 T 24 ss-8 T 16 Calculate the sample variance for each of the three samples. (Use two decimal places.) the three treatment use an ANOVA with -.05 to determine whether there are any significant differences ante means. Degrees of Freedom Source of Variation Between treatments Within treatments Total Mean Square Sum of Squares

Explanation / Answer

S1^2=SS/n-1=2/3=0.67

S2^2=SS/n-1=4/3=1.67

S3^2=SS/n-1=8/3=2.67

X=4+2+6/3=4

SSA=4(4-(4))^2……4(6-(4))^2=32

SSW=(4-(4))^2….(6-(6))^2=14

MSA=32/(3-1)=16

MSW=14/(12-3)=1.56

F=16/1.56=10.2857

Fcrit=4.256=4.26

Reject the null hypothesis, there are significant differences among the three treatments

Anova: Single Factor SUMMARY Groups Count Sum Average Variance 1 4 16 4 0.666666667 2 4 8 2 1.333333333 3 4 24 6 2.666666667 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 32 2 16 10.28571429 0.004733321 4.256494729 Within Groups 14 9 1.555555556 Total 46 11

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