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1) The table below shows the grades in three small sections of a challenging Statistics class. Section #1 66 36 27 36 46 22 28 32 19 43 17 35 Section #2 21 47 42 35 25 30 Section #3 40 41 36 33 15 32 13 41 31 Use AN OVA to test if the means are the same for all sections at the 5% signicance level. a) State the null hypothesis H0, and state the distribution of the test statistic. Find the critical value of the test statistic (you may want to use the ftables included at the end of the Test). b) Using your calculator, nd the value of the test statistic, the pooled standard devi- ation, and the pvalue of the test. State your conclusion and explain your reasoning