Mathematics, 19.11.2019 02:31 lorydiane
Aparticular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. from past studies of this tire, the standard deviation is known to be 8,000. a survey of owners of that tire design is conducted. of the 31 tires surveyed, the mean lifespan was 46,800 miles with a standard deviation of 9,800 miles. using alpha do the data support the claim at the 5% level?
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Having a hard time understanding this question (see attachment).
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One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?
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Aparticular brand of tires claims that its deluxe tire averages at least 50,000 miles before it need...
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