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The length of conversations between supervisors and workers in a certain manufacturing industry is normally distributed...

The length of conversations between supervisors and workers in a certain manufacturing industry is normally distributed with a mean of 4.0 minutes and a standard deviation of 0.8 minutes. a. Use the normal curve table to determine the percentage of conversations given the times provided and illustrate your answers with sketches of the normal distribution:

1. Longer than 4.4 minutes
2. Shorter than 2 minutes.

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Answer #1

1) 30.85 percentage of conversations are longer than 4.4 minutes.

2) 0.62 percentage of conversations are shorter than 2 minutes.

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