A standard generator battery lasts for = 4 hours on averagewith standard deviati

Question

A standard generator battery lasts for = 4 hours on averagewith standard deviation = .3 hours. An additive is added tothe battery in hopes of extending the mean amount of time thebattery lasts. n = 5 batteries are tested using the new additive.The goal of the study is to determine if the battery additiveincreases the life of the battery on average.

State the null and alternative hypotheses for this problem in termsof a model parameter. Define the parameter.

I'm not sure what to do here. Can anyone point me in the rightdirection?

Explanation / Answer

Null hypothesis:
The average life of a standard generator battery is 4 hoursi.e. Altenative hypothesis: The average life of a standard generator battery increases dueto the battery additive i.e.,Ha: >4 hours                          Altenative hypothesis: The average life of a standard generator battery increases dueto the battery additive i.e.,Ha: >4 hours                                                                                                                    H0:=4hours                                                    Versus                                              Ha:>4 hours                                                                        

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