2. The expenditure per pupil for K12 public schools in the United States has a normal distribution...
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2. The expenditure per pupil for K–12 public schools in the United States has a normal distribution with a mean µ = $12,611.84 and a standard deviation σ = $4,148.46. Researchers randomly selected a group of 50 high performing public schools, and their average expenditure per pupil was $13,526.91. Was the average expenditure per pupil from high performing public schools higher than $12,611.84, assuming α = .05?
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