A sample of 39 observations is selected from a normal population. The sample mean is 43, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.02 significance level.

H₀:= 45H₁: 45rev: 10_12_2016_QC_CS-65155

1.

value:

10.00 points

Required information

a.Is this a one- or two-tailed test?

Two-tailed test

One-tailed test

References

eBook & Resources

Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

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2.

value:

10.00 points

Required information

b.What is the decision rule?

RejectH₀ifz < -2.326 or z > 2.326

RejectH₀if-2.326 < z < 2.326

References

eBook & Resources

Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

Check my work

3.

value:

10.00 points

Required information

c.What is the value of the test statistic?(Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)

Value of the test statisticReferences

eBook & Resources

WorksheetDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

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4.

value:

10.00 points

Required information

d.What is your decision regardingH₀?

Fail to rejectH₀

RejectH₀

References

eBook & Resources

Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

Check my work

5.

value:

10.00 points

Required information

e.What is thep-value?(Round z value to 2 decimal places and finalanswer to 4 decimal places.)

p-value