Level N Mean StDev A 6 10.300 2.700 B 5 16.800 2.168 C 4 10.800 2.387...
Level N Mean StDev A 6 10.300 2.700 B 5 16.800 2.168 C 4 10.800 2.387 Source DF SS MS F P Groups 2 132.92, 66.46, 11.02 0.002 Error 12 72.34 6.03 Total 14 205.26 What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to two decimal places. The pooled standard deviation is = . degrees of freedom =
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Level N Mean StDev A 6 10.300 2.700 B 5 16.800 2.168 C 4 10.800
2.387...
Chapter 8, Section 2, Exercise 042 Consider the data with analysis shown in the following computer...
Chapter 8, Section 2, Exercise 042 Consider the data with analysis shown in the following computer output: Level Mean z in StDev 3.061 2.168 2.387 10.000 16.800 10.800 u u Source DF SS MS F P Groups 2 138.13 69.07 10.48 0.002 12 79.07 6.59 Error Total 14 217.20 What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to...
Consider the data with analysis shown in the following computer output: Level N Mean StDev A...
Consider the data with analysis shown in the following computer output: Level N Mean StDev A 4 10.000 3.159 B 5 16.800 2.168 C 6 10.800 2.387 Source DF SS MS F P Groups 2 134.72 67.36 10.46 0.002 Error 12 77.23 6.44 Total 14 211.95 Is there sufficient evidence of a difference in the population means of the three groups? Yes No
ES Consider the data with analysis shown in the following computer output: Mean StDev 6 9.900...
ES Consider the data with analysis shown in the following computer output: Mean StDev 6 9.900 2.475 5 16.800 2.168 4 10.800 2.387 Source DF SS MS 2 139.86 69.93 10.74 0.002 Groups 12 78.12 6.51 Error 14 217.98 Total Is there sufficient evidence of a difference in the population means of the three groups?
5. Consider the data with analysis shown in the following computer output: Level N Mean StDev...
5. Consider the data with analysis shown in the following computer output: Level N Mean StDev A 4 10.400 2.668 B 5 16.800 2.168 C 6 10.800 2.387 Source DF SS MS F P Groups 2 126.88 63.44 11.09 0.002 Error 12 68.64 5.72 Total 14 195.52 Find a 95% confidence interval for the mean of population A. Round your answers to two decimal places.
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. Th...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 26 45 60 21 48 51 43 43 43 35 53 54 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 51 44 54 Click here for the EXCel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and...
Chapter 8, Section 2, Exercise 042 Consider the data with analysis shown in the following computer output: Level Mean z in StDev 3.061 2.168 2.387 10.000 16.800 10.800 u u Source DF SS MS F P Groups 2 138.13 69.07 10.48 0.002 12 79.07 6.59 Error Total 14 217.20 What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to...
ES Consider the data with analysis shown in the following computer output: Mean StDev 6 9.900 2.475 5 16.800 2.168 4 10.800 2.387 Source DF SS MS 2 139.86 69.93 10.74 0.002 Groups 12 78.12 6.51 Error 14 217.98 Total Is there sufficient evidence of a difference in the population means of the three groups?
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 26 45 60 21 48 51 43 43 43 35 53 54 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 51 44 54 Click here for the EXCel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and...
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