It is of interest to determine if there is a significant difference in population mean IQ among students from three different schools, at 0.01 level of significance. Following are IQ data from four randomly-selected students from each of the three schools. School H School I School J 100 103 100 100 104 101 102 105 104 104 106 104 A. What is the null hypothesis? B. What is the alternative hypothesis? C. What is the value of the test statistic? D. What is the critical value? E. What is the appropriate conclusion?

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