Please see 6.png

In a similar study (to the previous scenario), researchers would like to compare the depression levels reported by Australian adults across four different age groups (18 to 29; 30 to 39; 40 to 49; and 50 to 59). Depression was measured on a metric scale, with higher scores indicating higher levels of depression. Suppose the researchers hypothesised that there would be a signicant difference between 18 to 29 year olds and all other age groups. How would you set up the contrast coecients for each age group to test this hypothesis? Note the rst group has been set at 3 18 to 29 year olds = 3 30 to 39 year olds = 40 to 49 year olds = 50 to 59 year olds =