The number of customers attended to by a cashier in a pharmacy in the same hour-long period is normally distributed, with mean of 31.6 and standard deviation of 7.5. Identify the range of values around the mean that includes 95% of customers. 11 M 0 XI H 27°C
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It is given that
Mean, μ = 31.6
Standard deviation, σ = 7.5
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- adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 63.2 inches tall. round to 2 decimal placesthe average hourly wage of production workers in manufacturing in 2007 was $17.41.Assume the variable is normally distributed. If the standard deviation of earning is$3.72, find the percent of production workers who Earned less than $14.00The weight of newborn babies is normally distributed, with a mean of 3.3 kilograms and a standard deviation of 0.21 kilograms.Find the weight that 19% of newborn babies weigh more than.Round your answer to 2 decimal places.____ kg
- At a train reservation counter, customers come to desk with a mean time of 2.5 minutes. What is the probability that up to two minutes, 2 customers have come at the same time?A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.04 ounce. You can allow the cup to overfil 3% of the time. What amount should you set as the mean amount of coffee to be dispensed? Cik to View ongn 1.o the table Click to view. Dagn 2.of the tabin. Dounces (Round to two decimal places as needed.)Exhibit 6-5The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces. Refer to Exhibit 6-5. What percentage of items will weigh between 6.4 and 8.9 ounces?
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