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from her firms computer, telephone log and executive found that the mean length of 64 telephone calls during July was 4.48 minutes with a standard

from her firms computer, telephone log and executive found that the mean length of 64 telephone calls during July was 4.48 minutes with a standard deviation of 5.87 minutes she vowed to make an offer to reduce the little calls the August phone lol shield 48 telephone calls who's means was 2.396 minutes with a standard deviation of 2.018 minutes

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