A contrast expresses an effect in the population as a combination of population means,of the form .The contrast can be estimated or tested using the sample data.Which of the following statements about or properties of contrasts is/are FALSE? A)The corresponding sample contrast is . B)The coefficients of the contrast must sum to one, . C)The standard error of a sample contrast is given by . D)To test the hypothesis that the population contrast = 0,the test statistic is ,which follows the t distribution with DFE associated with From the ANOVA. E)The confidence interval for Takes the form ,where Is the appropriate value of the t(DF E)distribution.

Question

Quizplus · Accepted Answer

The Answer of A contrast expresses an effect in the population as a combination of population means,of the form .The contrast can be estimated or tested using the sample data.Which of the following statements about or properties of contrasts is/are FALSE? A)The corresponding sample contrast is . B)The coefficients of the contrast must sum to one, . C)The standard error of a sample contrast is given by . D)To test the hypothesis that the population contrast = 0,the test statistic is ,which follows the t distribution with DFE associated with From the ANOVA. E)The confidence interval for Takes the form ,where Is the appropriate value of the t(DF E)distribution.

A Contrast Expresses an Effect in the Population as a Combination