Mathematics, 12.02.2020 02:00, jmdlightsout12345
A rental car company claims the mean time to rent a car on their website is 60 seconds with a standard deviation of 30 seconds. A random sample of 36 customers attempted to rent a car on the website. The mean time to rent was 75 seconds. Is this enough evidence to contradict the company's claim? Use a significance level of 0.01. Find the power of this test to detect a true mean of 70 seconds.
Answers: 1
Mathematics, 21.06.2019 14:10, javier04052000
Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?
Answers: 2
Mathematics, 21.06.2019 19:00, Marleneg
An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .
Answers: 1
A rental car company claims the mean time to rent a car on their website is 60 seconds with a standa...
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