If we want to know, that the standard deviation is equal to some constant A and the sample mean
is estimated from the same survey, which hypothesis should be tested?

Question

If we want to know, that the standard deviation is equal to some constant A and the sample mean 
 is estimated from the same survey, which hypothesis should be tested?

Answer

Hypothesis about standard deviation equality to constant, when the mean is unknown.

Answer

Hypothesis about variance equality to constant, when the mean is known.

Answer

Hypothesis about variance equality to constant, when the mean is unknown.

Answer

Hypothesis about standard deviation equality to constant, when the mean is known.

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If we want to know, that the standard deviation is equal to some constant A and ...

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