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A simple random sample of 100 batteries is selected from a process that produces batteries...

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A simple random sample of 100 batteries is selected from a process that produces batteries with a mean lifetime of 32 hours and a standard deviation of 3 hours Thus the standard deviation of the sampling distribution is equal to 0 3 If the sample size is changed to 400 what is the new standard deviation of the sampling distribution OA 0 01 OB 0 60 OC 0 30 OD 0 15 Here is the link to the formula sheet that you are allowed to use on this exam Math

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