Mathematics: If LaTeX: z_{obt}z o b t= +2.21, do you reject LaTeX: H_0H 0 or fail to reject LaTeX: H_0H 0 using a one-tailed test in the upper tail with α = .05? Why do you make that choice? Note: Be sure to type in the correct answer in the space provided here.

If LaTeX: z_{obt}z o b t= +2.21, do you reject

Ответ:

bri1710

07.02.2022

Mathematics

Reject the null hypothesis

Step-by-step explanation:

From the question we are told that

The test statistic is $z_{obt} = +2.21$

The level of significance is $\alpha = 0.05$

Given that this a one tailed in the upper tail then from the z table the area under the normal curve to the right corresponding to $z_{obt} = +2.21$ is

P( Z 2.21) = 0.013553

So the p-value is

p-value = P( Z 2.21) = 0.013553

From the values obtained we see that $p-value < \alpha$ hence

The decision rule

Reject the null hypothesis

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If LaTeX: z_{obt}z o b t= +2.21, do you reject LaTeX: H_0H 0 or fail to reject LaTeX: H_0H 0 using a one-tailed test in the upper tail with α = .05? Why do you make that choice? Note: Be sure to type in the correct answer in the space provided here.

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