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A consumer analyst reports that the mean life of a certain type of automobile battery is not 74 months

Ho: mean life is 74 months (i.e. Ho:µ = 74) and Ha: Mean life is not 74 months (i.e. Ha: µ≠74)

•Find the test statistic.
•Find the p-value.
•Decide whether to reject the null hypothesis.
•Interpret the decision in the context of the original claim. A consumer analyst reports that the mean life of a certain type of automobile battery is not 74 months

Ho: mean life is 74 months (i.e. Ho:µ = 74) and Ha: Mean life is not 74 months (i.e. Ha: µ≠74)

  • Find the test statistic.
  • Find the p-value.
  • Decide whether to reject the null hypothesis.

•Interpret the decision in the context of the original claim.

 

Reference no: EM13684506

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