6.9. On a toy assembly line, daily output for each worker averages 46.7 units with a standard deviation of 8.90 units. Assume the histogram of daily output looks approximately like the normal curve. a. On a given day, what percentage of workers have a daily output over 50 units? b. 25 workers are selected at random. What is the probability that their output for a given day will average 50 units or higher? c. 25 workers are selected at random. There is an 80% chance that their output will average below units.

MATLAB: An Introduction with Applications
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### Problem 6.9

On a toy assembly line, the daily output for each worker averages 46.7 units, with a standard deviation of 8.90 units. Assume the histogram of daily output looks approximately like the normal curve.

a. On a given day, what percentage of workers have a daily output over 50 units?

b. 25 workers are selected at random. What is the probability that their output for a given day will average 50 units or higher?

c. 25 workers are selected at random. There is an 80% chance that their output will average below ____ units.
Transcribed Image Text:### Problem 6.9 On a toy assembly line, the daily output for each worker averages 46.7 units, with a standard deviation of 8.90 units. Assume the histogram of daily output looks approximately like the normal curve. a. On a given day, what percentage of workers have a daily output over 50 units? b. 25 workers are selected at random. What is the probability that their output for a given day will average 50 units or higher? c. 25 workers are selected at random. There is an 80% chance that their output will average below ____ units.
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