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I have an xbar of 1000 and an Sx of 103. I have a random sample of 30. I am trying to figure out if this is an adequate sample without knowing the total population in an office. Can you lead me to a useable equation?

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The solution addresses an xbar of 1000 and an Sx of 103. I have a random sample of 30. I am trying to figure out if this is an adequate sample without knowing the total population in an office. Can you lead me to a useable equation?

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