mathematics
posted by latoya
a drinks machine dispenses coffee into cups. A sign on the machine indicates that each cup contains 50 ml of coffee. the machine actually dispenses a mean amount of 55ml per cup and 10% of the cups contain less than the amount stated on the sign. assuming that the amount of coffee dispensed into each cup is normally distributed find the standard deviation of the amount of coffee dispensed per cup in ml.

Damon
see if this helps:
http://davidmlane.com/hyperstat/z_table.html
Respond to this Question
Similar Questions

intro to statistics
a vending machine dispenses coffee into an 8 oz cup. the amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 oz.you can allow the cup to overfill 1 percent of the time. what among should … 
.. need help with this question asap pls
a vending machine dispenses coffee into an eight ounce cup. The amount of coffee dispensed into the cup is normally distributed with sd 0.02 ounce . you can allow the cup to overfill 5% of the time .What amount should you set a mean … 
Statistics
A vending machine dispenses coffee into an eightounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of .03 ounce. You can allow the cup to OVERFILL 1% of the time. What amount should … 
Descriptive Statistics
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 ounces. You can allow the cup to overfill 10% of the time. What amount … 
statistics
A vending machine dispenses coffee into a sixteen ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 ounces. You can allow the cup to overfill 10% of the time. What amount … 
Statistics
A vending machine dispenses coffee into a twelveounce cup. The amount of coffee dispensed in to the cup is normally distributed with a standard deviation of .08 ounce. You can allow the cup to overfill 2% of the time. What amount … 
Introduction to statistics
A vending machine dispenses coffee into an eightounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of .03 ounce. You can allow the cup to OVERFILL 1% of the time. What amount should … 
statistics
A vending machine dispenses coffee into a twelveounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.05 ounce. You can allow the cup to overfill 4% of the time. What amount … 
statistics
a vending machine dispenses coffee into an 8 oz cup. the amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 oz.you can allow the cup to overfill 5 percent of the time. what amont should … 
statistics
A vending machine dispenses coffee into a twelveounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.07 ounce. You can allow the cup to overfill 2% of the time. What amount …