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WROK has determined an average listenership is 15 minutes with a standard deviation of 1.25 minutes. The number of respondents in this study is 500

WROK has determined an average listenership is 15 minutes with a standard deviation of 1.25 minutes. The number of respondents in this study is 500 people. Calculate the standard error of the mean and determine the LOWER limit of the 99% confidence interval given this data. The LOWER limit for the 99% confidence interval is [____]

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