Question
a consulting firm needs to estimate the average wage for elementary teachers within a local school district. Assume the parent population of salaries is normally
a consulting firm needs to estimate the average wage for elementary teachers within a local school district. Assume the parent population of salaries is normally distributed with a variance of$855625.00. What sample size is needed to estimate the true average salary to within $500.00 with 98% confidence?
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Differential Equations With Boundary-Value Problems
Authors: Dennis G Zill, Ellen Monk, Warren S Wright
8th Edition
1285401298, 9781285401294
