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Title: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: Stevbo on Aug 15, 2016 The ABC battery company claims that their batteries last at least 100 hours, on average. Your experience with their batteries has been somewhat different, so you decide to conduct a test to see if the company's claim is true. You believe that the mean life is actually less than the 100 hours the company claims. You decide to collect data on the average battery life (in hours) of a random sample of n = 20 batteries. Some of the information related to the hypothesis test is presented below.
Test of H0: mu => 100 versus H1: < 100 Sample mean 98.5 Std error of mean 0.777 Assuming the life length of batteries is normally distributed, what is the value of the test statistic used to conduct your test of hypothesis? Place your answer, rounded to 3 decimal places in the blank. For example, -2.345 would be a legitimate entry. Title: Re: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: bio_man on Aug 16, 2016 See if this helps :down:
Title: Re: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: KalSkirata79 on Jul 19, 2019 Thanks for the help.
Title: Re: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: Tobichia on Sep 13, 2019 Thank you!
Title: Re: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: bio_man on Sep 14, 2019 Thanks for the help. Thank you! Both are very welcome :) Title: Re: The ABC battery company claims that their batteries last at least 100 hours, on average. Your ... Post by: marinedevilnut on Dec 15, 2019 NICE!
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