Mathematics, 21.12.2019 07:31 nevelle
The cash operating expenses of the regional phone companies during the first half of 1994 were distributed about a mean of $29.93 per access line per month, with a standard deviation of $2.65. company a's operating expenses were $27.00 per access line per month. assuming a normal distribution of operating expenses, estimate the percentage of regional phone companies whose operating expenses were closer to the mean than the operating expenses of company a were to the mean. (round your answer to two decimal places.)
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The cash operating expenses of the regional phone companies during the first half of 1994 were distr...
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