Question: 2 points 5? A time study was conducted for a job that has a mean of 21 minutes and a standard deviation of 2.5 minutes.

2 points 5? A time study was conducted for a job
2 points 5? A time study was conducted for a job that has a mean of 21 minutes and a standard deviation of 2.5 minutes. If we require that our estimate of the Observed Time be within 0.7 minutes with 90% accuracy, how many observations are required? Condence 90% 95% 95.5% 98% 99% { Provide your answer rounded up to the nearest unit. Example > 55.3 becomes 56) Type your

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