lbww77252020-11-11 14:13:11
lbww7725a one-tailed test is more appropriate if the sample mean is greater or less than the null hypothesized value or the metric is financial such as in this case of a mutual fund's mean return.这句话哪里错了？；；
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Jenny2020-11-11 14:36:21
Jenny同学你好，请附上完整题干，谢谢！
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