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 What is the null hypothesis? O At least two of the three schools have equal population mean student IQ O At least two of the three schools have unequal population mean student IQ D All of the three schools have equal population mean student IQ D All of the three schools have unequal population mean student IQ

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what is the null hypothesis? what is the test statistic?
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
106
104
104
What is the null hypothesis?
At least two of the three schools have equal population mean student IQ
At least two of the three schools have unequal population mean student IQ
All of the three schools have equal population mean student IQ
All of the three schools have unequal population mean student IQ
Transcribed Image Text: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 100 103 100 100 104 101 102 105 104 106 104 104 What is the null hypothesis? At least two of the three schools have equal population mean student IQ At least two of the three schools have unequal population mean student IQ All of the three schools have equal population mean student IQ All of the three schools have unequal population mean student IQ
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