1. Nationally, the abuse of methamphetamine has become a concern, not only because of the effects of drug abuse, but also because of the dangers associated with the labs that produce them. A stratified random sample of total of 12 countries in Iowa (stratified by size of county-small, medium, or large) produced the following ANOVA table relating the number of methamphetamine labs to the size of the county. Use this table to answer the following questions. One-Way ANOVA: meth labs versus type Source Type Error Total DF SS 37.51 MS F 70.60 a. Fill in the values missing from the table b. Find the p-value for the F-test in the table c. Describe the hypothesis tested by F-test in the table, and using the p-value from part (b), give an appropriate answer. 2. Suppose than an instructor want wants to investigate whether the font used on an exam affects student performance as measured by the final exam score. She uses four different fonts (time , courier, helvetica, comic sans ) and randomly assigns her 40 students to one of these four fonts. a. Identify the explanatory and response variables in this study. b. Is this an observational study or a randomized experiment? Explain how you know. c. Even though the subjects in this study were not randomly selected from a population, it's still appropriate to conduct an analysis of variance .Explain why