One$-$Way ANOVA: ANOVA $1($Algo$)$

Instructions: Use the interactive tool as directed to answer the questions below.

Using the interactive tool, select the Market Research data and request a sample size of $45.$ Request a plot of the Age variable.

a$.$ With Overall Mean selected, what is the length of the first dotted line shown at the top of the chart? $($Hint: Use the Show Data button in the calculations window.$)($Report two decimal places. Do not include a negative sign.$)$

b$.$ With Group Means selected, what is the length of the first dotted line shown at the top of the chart? $($Hint: Use the Show Data button in the calculations window.$)($Report two decimal places. Do not include a negative sign.$)$