Question
A company provides portable walkie-talkies to construction crews. They use batteries that last, on average, 62...
- A company provides portable walkie-talkies to construction crews. They use batteries that last, on average, 62 hours of continuous use. The purchasing manager receives a brochure advertising a new brand of batteries that claims it has more longevity than the brand currently in use. To test this, the new brand is installed in 10 randomly selected radios. Here are the results for the lifetime of the batteries (in hours):
55 61 68 72 70 59 70 64 60 67
Is there sufficient evidence to conclude that the advertising for the is correct in claiming that the new batteries have a longer lifetime? Conduct hypothesis test using = 0.05 (8 Points – 2 Points for Error Question).
H0: _____________ Ha: _____________ =
Calculate test statistic:
P-value:
State your Conclusion:
What would it mean if you made a TYPE I Error in the context of this scenario?
Homework Answers
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