[問題] 用R得出來的結果看不懂
t.test(homework$DCP,alternative=c("less"),mu=30)
One Sample t-test
data: homework$DCP
t = -0.7282, df = 51, p-value = 0.2349
alternative hypothesis: true mean is less than 30
95 percent confidence interval:
-Inf 31.61088
sample estimates:
mean of x
28.76154
這到底是拒絕還是接收哩
感謝大家了
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