Researchers for a manufacturer of barometers (devices to measure atmospheric pressure)
Researchers for a manufacturer of barometers (devices to measure atmospheric
pressure) read each of 50 barometers at the same time each day. The mean of the readins is 30.2 with a standard deviation of 0.24 and the readings appear to be normally distributed. A. What percentage of the barometers read over 30.8? B. What percentage read less than 29.6 C. The company decides to reject barometers that read more than 2 standard deviations above or below the mean. What reading below would be rejected? What reading above would be rejected
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