A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level.
H_{0}: μ ≤ 10
H_{1}: μ > 10
Onetailed test
Twotailed test
Reject H_{0} when z > 2.326
Reject H_{0} when z ≤ 2.326
Reject H_{0}
Fail to reject H_{0}

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