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This question was created from Performance Lawn Equipment Case Study.pdf https://www.coursehero.com/file/42162714/Performance-Lawn-Equipment-Case-Studypdf/

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How do I calculate the number of blade weights? I am getting a number less than 1 which doesn't make sense.

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How many blade weights must be measured to find a 95% confidence interval for the
mean blade weight with a sampling error of at most 0.2? What if the sampling error is
specified as 0.1?

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