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Social ScienceThe manufacturer of a certain engine treatment claims that if you add their product to your engine, it will be protected from excessive wear. An infomercial claims that a woman drove3hours without oil, thanks to the engine treatment. A magazine tested engines in which they added the treatment to the motor oil, ran the engines, drained the oil, and then determined the time until the engines seized. Complete parts (a) and (b) below.(a) Determine the null and alternative hypotheses that the magazine will test. UpperH0:▼ muμsigmaσpp▼ not equals≠less than<greater than>equals=3Upper H1:▼ muμsigmaσpp▼ not equals≠equals=less than<greater than>3(b) Both engines took exactly 17 minutes to seize. What conclusion might the magazine make based on this evidence? A.The infomercial's claim is true.The Informericial not true
Expert Answer
(a)
From the given information, the claim of the problem is the average hours without oil is equal to 3.
Null Hypothesis:
H0: µ=3.
Alternative Hypothesis:
H1: µ≠3.
Thus, the c...
Math
Statistics
Hypothesis Testing
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