In hypothesis testing three approaches may be used No correc

In hypothesis testing, three approaches may be used: No correction needed; Bonferroni correction; The q value method. For each of the following four scenarios, which approach is appropriate A general linear model has eight explanatory variables, and we are interested in whether each of them has an significant effect. Researchers see linear trend in a scatterplot of self-esteem score versus age. and are interested in whether the slope of the Iine- is significant. In a completely randomized design, test whether the four paints for highway marking have the same level of reflectivity. For each of the 193 countries in the United Nations, test whether there is a significant association between the average annual income and life expectancy (number of years) at birth in the past fifty years. We want to identify as many such countries as possible; in other words, we do not want to be too conservative in identifying candidate countries. The initial ANOVA table (Table 1) was obtained from a study where 4 newspaper editorial-regarding a statewide - referendum were to be compared. A total of 60 Republicans. 60 Democrats. and 60 Independents were sampled, and 15 of each were exposed to editorials 1, 2. 3, and 4, respectively. A numeric measure of attitude toward the referendum was obtained for each subject. Fill in the table where there is not a dash.

Solution

a)

no correction needed

b)

the q value method

c)

bonferroni correction

d)

no correction needed