Suppose we are interested in the average reading achievement test score of all the currently enrolled students in second grade at a school with three second grade classrooms. (One of which is Zaphod the Destroyer's classroom) The average test score of Zaphod the Destroyer's class is an element. a sample. a statistic.

Q: 51 69 73 74 75 82 89 93 98 100 and the range. 68 69

A: Given Range =Highest value - lowest value

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A: Given that  Sample size n =1100 Sample proportion p^=68%=0.68 Margin of error =E = ±4%=±0.04

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A: The sample mean is calculated as follows: x=∑xn  =18+16+16+16+14+18+16+18+14+1910  =16.5

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Q: Source of Variation Treatments Error Total ܓ =ܨ ܢܕ "ܨ ܐܐ Tܕ ܐܐ ܙ ܕܐ PPPPPs Ob The null hypothesis…

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