stion Completion Status 5 points Save Answer QUESTION 15 responses. Use the SPss
ID: 3173933 • Letter: S
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stion Completion Status 5 points Save Answer QUESTION 15 responses. Use the SPss output shown as follows to answer all parts of this question (located below the SPSS output) Be specific in your A researcher wants to investigate the impact of fertilizaton on plant growth The plants were splitinto 3 evels acontrol group (ctr which received no fertlize assessed by weighing each harvested plant. Levene's Test of Equality of Error Shapiro-Wilk Variances Kolmogorov- Dependent Variable: weight weight ctrl 10 .200" .930 564 200 Tests the null hypothesis that the error variance of the dependent variable is equal across groups. a. Desian: Interceot arouo Tests of Between-Subjects Effects Dependent Variable: weight Squared df Mean Square of Squares Source 987 3,766 Corrected Model 772.060 1986.794 000 772.060 264 1.883 4.846 016 Intercept 3.766 389 10,492 Error 30 786.318 Corrected Total 14,258 210) a. R Squared 264 (Adjusted R SquaredExplanation / Answer
a. Yes. all the variables are Normal as per KS & Shaprio Wilk test
b. Yes, p-values are <0.05 so at 5% level, we reject H0.
c. Effect size= SS for treatment/ S of group = 3.7/14.2 = 0.26
d. There is significant difference between "tr1" & "tr2"
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