Hypothesis testing for single normal population variances

发布时间 ： 2025-12-17 01:41:52 UTC      

类别 ： Electronic

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1,Input each sample value or sample size plus the calculated sample standard deviation:
Enter each sample value Input sample size and sample standard deviation
Enter the sample values in the following multi-line input box separated by commas or blank characters
2,Select the significance level α：
0.1 0.05 0.025 0.02 0.01 0.005 0.001
3,Set the hypothesis option (original hypothesis is ): H0,alternative hypothesis is H1)：
H0:σ2=σ02, H1:σ2≠σ02
H0:σ2≤σ02, H1:σ2>σ02
H0:σ2≥σ02, H1:σ2<σ02
Enter σ0 in the input box. The value of variance σ02 can be followed by the letter q,σ0＝
4,Click the "Start Inspection" button to start checking:

Hypothesis testing of single normal total variance

It is known that the overall X obeys a normal distribution with a mean of μ, a standard deviation of σ, and a variance of σ2, ie X~ N(μ,σ2), This page deals with the case where the mean value is unknown to the other party's difference hypothesis test, and the test statistic is

。

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