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Mathematics, 06.05.2020 00:25 vcasela

Different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 87 sec, what does df denote, and what is its value?

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Different video games showing drug use were observed. The duration times of drug use (in seconds) we...
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