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Consider the following hypotheses: H 0 : = 30 H A : 30 The population is normally distributed. A sample produces the following observations: (You

Consider the following hypotheses: H0:= 30 HA: 30

The population is normally distributed. A sample produces the following observations:(You may find it useful to reference the appropriate table:ztableorttable)

34 35 34 32 31 31 32

Click here for the Excel Data File

a.Find the mean and the standard deviation.(Round your answers to 2 decimal places.)

b.Calculate the value of the test statistic.(Round final answer to 2 decimal places.) c.Find thep-value. multiple choice 1

  • p-value < 0.01
  • p-value0.10
  • 0.05p-value < 0.10
  • 0.02p-value < 0.05
  • 0.01p-value < 0.02

d.At the 5% significance level, what is the conclusion? multiple choice 2

  • Do not rejectH0since thep-value is smaller than.
  • Do not rejectH0since thep-value is greater than.
  • RejectH0since thep-value is smaller than.
  • RejectH0since thep-value is greater than.

e.Interpret the results= 0.05. multiple choice 3

  • We cannot conclude that the sample mean differs from 30.
  • We conclude that the population mean differs from 30.
  • We cannot conclude that the population mean differs from 30.
  • We conclude that the sample mean differs from 30.

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