Mathematics, 25.11.2021 07:40 mya1318
An online computer support company claims that their mean call-back time is less than 38 minutes. A random sample of 30 calls has a sample mean of 29 minutes and a standard deviation of 6.5 minutes. Calculate the test statistic for testing the company's claim. Assume that a simple random sample has been selected from a normally distributed population. Round to the nearest hundredth.
Answers: 1
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Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.
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Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?
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An online computer support company claims that their mean call-back time is less than 38 minutes. A...
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