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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.

 

H 0:  μ = 45 H 1:  μ ≠ 45 rev: 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 Choice Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

Check my work

 2.

value:

10.00 points

Required information

 

b.What is the decision rule?

Reject  H 0 if z < -2.326 or z > 2.326

Reject  H 0 if -2.326 < z < 2.326

References

eBook & Resources

Multiple Choice Difficulty: 2 Intermediate Learning 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 statistic   References

eBook & Resources

Worksheet Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean.

Check my work


 

 4.

value:

10.00 points

Required information

 

d.What is your decision regarding  H 0?

Fail to reject  H 0

Reject  H 0

References

eBook & Resources

Multiple Choice Difficulty: 2 Intermediate Learning 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 the  p-value?  (Round z value to 2 decimal places and final answer to 4 decimal places.)

 

  p-value  

 


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