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Test for single population mean.

Utilize a 0.05 significance level to test the claim that the mean life span of cell phones is equal to 5 years. The sample data are summarized by the statistics n=27, x=4.6 years, s- 1.9 years. See the display below.

 

 

 

Test

Value = 5

 

 

 

 

 

 

 

 

95% Confidence Interval of the Difference

 

t

df

Sig. 2(Tailed)

Mean Difference

lower

upper

Age

-1.094

26

0.284

-0.4

************

*****

 

 

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920997

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