QuestionA school district tests a new reading curriculum in 3 classrooms. Given post-test scores: 19, 13, 16, 18, 15, 14, 17, 8, 20, 19, 22, 11, find sample size , total sum , and mean . Then convert scores to a 100-point scale (multiply by 4) and recalculate , , and .
Studdy Solution
Calculate the new sample mean.
The sample size is12, the total sum is192, and the sample mean is16 on a25-point scale. On a100-point scale, the sample size is12, the total sum is768, and the sample mean is64.
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