A machine fills containers with a mean weight per container of 16.0 oz. If no more than 5% of the containers are to weigh less than 15.8 oz, what must the standard deviation of the weights equal? (Assume normality.)
Answer to relevant Questions“On-hold” times for callers to a local cable television company are known to be normally distributed with a standard deviation of 1.3 minutes. Find the average caller “on-hold” time if the company maintains that no ...Find the area under the normal curve that lies to the left of the following z-values a. z = - 1.30. b. z = - 2.56. c. z = - 3.20. d. z = - 0.64. Draw a figure of the standard normal curve showing: a. Z(0.04) b. Z(0.94) a. Find the area under the normal curve for z between z(0.95) and z(0.025). b. Find z(0.025) - z(0.95). Find the normal approximation for the binomial probability P(x < 8), where n = 14 and p = 0.4. Compare this to the value of P(x < 8) obtained from Table 2.
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