总体均值μ的95%的置信区间为(20.34, 30.57)。则下列说法不正确的是
总体均值μ的95%的置信区间为(20.34, 30.57)。则下列说法不正确的是
90%置信度时,平均值的置信区间为(30.45%,30.57%),那么当置信度95%时,以下置信区间范围可能的是 A: (30.48%,30.54%) B: (30.48%,30.60%) C: (30.42%,30.60%) D: (30.42%,30.54%)
90%置信度时,平均值的置信区间为(30.45%,30.57%),那么当置信度95%时,以下置信区间范围可能的是 A: (30.48%,30.54%) B: (30.48%,30.60%) C: (30.42%,30.60%) D: (30.42%,30.54%)
1