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 product of two numbers, x and y, if x+y=10?
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What is the length of the hypotenuse in a right triangle with legs measuring 9 cm and 12 cm?
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What is the standard deviation of the following data set: 12, 18, 21, 24, 27?