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An educator claims that the average salary of substitute teachers in school districts in Allegheny county, Pennsylvania is less than $60 per day. A random
An educator claims that the average salary of substitute teachers in school districts in Allegheny county, Pennsylvania is less than $60 per day. A random sample of eight school districts is selected, and the daily salaries ( in dollars) are shown 60 56 60 55 70 55 60 55
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