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14. Z-Test
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This video explains the Z-test, a statistical method used to compare a sample mean to a known population mean, typically when the sample size is large (n is greater than or equal to 30) or the population variance is known.
It covers the Z-test formula, how to state hypotheses, and how to calculate the Z-score.
A practical example is demonstrated, including the decision-making process for accepting or rejecting the null hypothesis, based on critical Z-values.
Perfect for students and professionals wanting a clear, step-by-step guide to performing a Z-test.
#ejdansu #mathematics #maths #mathswithejd #statistics #inferentialstatistics #hypothesistesting #ztest #zscore
It covers the Z-test formula, how to state hypotheses, and how to calculate the Z-score.
A practical example is demonstrated, including the decision-making process for accepting or rejecting the null hypothesis, based on critical Z-values.
Perfect for students and professionals wanting a clear, step-by-step guide to performing a Z-test.
#ejdansu #mathematics #maths #mathswithejd #statistics #inferentialstatistics #hypothesistesting #ztest #zscore
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