z=\frac{\left(x-\mu\right)}{\frac{\sigma}{\sqrt{n}}}
Z: critical value
\sigma\colon : population standard deviation.
n: sample size
\mu\colon population mean
Frequently asked questions (FAQs)
What is the limit as x approaches 3 of (5x^2 - 7x + 2) / (x^2 - 9)?
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How many different types of triangles can be formed using sides of lengths 4, 5, and 7?