State the Null hypothesis and Alternative hypothesis

3. _ Coffee contains caffeine. Seven brands of coffee available in the supermarket were tested for their caffeine content. The results are as follows. E\"/0 caffeine m coffee -_-_ ____-_- mmnlm_ -E-m i. UselAnalysis of Variance (AN OVA) to Wthe data and conclude whether there is any signicant difference at of=0.05 in the caffeine content in various brands of coffee. Show your steps including the hypothesis, ANOVA, conclusion and decision. You are allowed: to use the statistical package of Microsoft Excel. Replicate