One Sample t-test
data: X
t = 0.6685, df = 15, p-value = 0.257
alternative hypothesis: true mean is greater than 225
95 percent confidence interval:
198.2321 Inf
sample estimates:
mean of x
241.5
One Sample t-test
data: X
t = -0.0034, df = 15, p-value = 0.5013
alternative hypothesis: true mean is greater than 225
95 percent confidence interval:
192.3401 Inf
sample estimates:
mean of x
224.9375
One Sample t-test
data: X
t = -1.1377, df = 15, p-value = 0.8634
alternative hypothesis: true mean is greater than 225
95 percent confidence interval:
177.5168 Inf
sample estimates:
mean of x
206.3125
> t.test(X, alternative = "less", mu = 225)
One Sample t-test
data: X
t = -1.1377, df = 15, p-value = 0.1366
alternative hypothesis: true mean is less than 225
95 percent confidence interval:
-Inf 235.1082
sample estimates:
mean of x
206.3125
