The following data are from a completely randomized design

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The following data are from a completely randomized design.

 

Treatment

 

A

B

C

 

162

147

123

 

141

156

122

 

168

127

137

 

145

147

141

 

147

138

155

 

173

143

126

 

Sample mean

156

143

134

Sample variance

179.2

96.4

165.6

 


 

  1. Compute the sum of squares between treatments.

  2. Compute the mean square between treatments.

  3. Compute the sum of squares due to error.

  4. Compute the mean square due to error (to 1 decimal).

  5. Set up the ANOVA table for this problem. Round all Sum of Squares to nearest whole numbers. Round all Mean Squares to one decimal places. Round F to two decimal places. 

    Source of Variation

    Sum of Squares

    Degrees of Freedom

    Mean Square

    F

    Treatments

     

     

     

     

    Error

     

     

     

     

    Total

     

     

     

     

  6. At the  = .05 level of significance, test whether the means for the three treatments are equal.
    Calculate the value of the test statistic (to 2 decimals).

    The 
    p-value is Selectless than .01between .01 and .025between .025 and .05between .05 and .10greater than .10Item 15

    What is your conclusion?

 


 

  • 10 years ago
Answer for: The following data are from a completely randomized design
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