Mathematics, 22.07.2019 14:30 kimezzell18

Suppose that a customer service center claims that the telephone calls it receives last 114 seconds on average, with a standard deviation of 9 second. if you took a sample of 324 telephone calls, which of the following mean times would be within the 95% confidence interval

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Suppose that a customer service center claims that the telephone calls it receives last 114 seconds...