1. Reject or Fail to reject 2. options: a)variances are equal b)variances are no

Question

1. Reject or Fail to reject

2. options: a)variances are equal b)variances are not equal c)the data are normally distributed d) the data are not normally distributed

3. options: a)QQ plot b)Residual scatter plot

4. options: a)the data points are closely clustered about the line b)there are clear deviations from the line c)the residuals are structureless d)there is a clear pattern in the residuals

Please help on this empirical methods question!

Concerned about the validity of their experiment, the engineers investigate the assumptions of their approach. They observe the following results Statistic 6.409 df1 20 003 Shapiro-Wilk df Stati Unstandardized Residual 942 24 185 Normal O-O Plot of Unstandardzed Residual served Value Scatterplot Dependent Variable: VAR00002 Regressian Standardized Predicted Value

Explanation / Answer

Ans:

Lavene' statistic:

1)As,p-value=0.003<0.05,we reject null hypothesis.

2)suggesting that variances are not equal.

Normality test:

3)QQ plot(shows Normality)

4)a)the data points are closely clustered about the line.

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