问题如下图：
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解释：
NO.PZ2018062016000145问题如下Whiof the following statements on F-test is most appropriate?A.The samples in F-test not ranm. B.F-test conthe tests concerning fferences between the variances of two populations. C.F-test is a hypothesis test concerning a parameter.B is correct. F-test is usefor tests concerning the fferenbetween the variances of two populations(normally stributepopulations) , anthe samples are inpennt anranm.老师能否给一下f test代表总体方差之间差额的那页ppt 没找到
NO.PZ2018062016000145问题如下Whiof the following statements on F-test is most appropriate? A.The samples in F-test not ranm. B.F-test conthe tests concerning fferences between the variances of two populations. C.F-test is a hypothesis test concerning a parameter. B is correct. F-test is usefor tests concerning the fferenbetween the variances of two populations(normally stributepopulations) , anthe samples are inpennt anranm.比如说原假设H0:μ=μ0，这样的就是一个参数；原假设H0: μ1=μ2，这样的就是两个参数。u=3.14这种是一个参数，u1=u2这种是两个参数对麻，这里的u=u0是什么意思
