The cash operating expenses of the regional phone companies during the first half of 1994 were distributed about a mean of $29.99 per access line per month, with a standard deviation of $2.35. Company N's operating expenses were $37.02 per access line per month in the first half of 1994. Estimate the percentage of regional phone companies whose operating expenses were higher than those of Company N. (Round your answer to two decimal places.)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The cash operating expenses of the regional phone companies during the first half of 1994 were distributed about a mean of $29.99 per access line per month, with a standard deviation of $2.35. Company N's operating expenses were $37.02 per access line per month in the first half of 1994. Estimate the percentage of regional phone companies whose operating expenses were higher than those of Company N. (Round your answer to two decimal places.) 

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