# stats

The weight of a product is normally distributed with a standard deviation of .8 ounces. What should the average weight be if the production manager wants no more than 1% of the products to weigh more than 7.3 ounces?

1. 👍 0
2. 👎 0
3. 👁 317
1. If the mean is 5.45 oz, and the standard deviation is 0.8, 99% will weigh less than 7.3 oz.

That was obtained with a Java normal distribution web site by trial and error, varying the mean value.

You could also use a rule that the upper bound should be 2.3 sigma from the the mean for 99% inclusion.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### statistics

The amount of corn chips dispensed into a 16-ounce bag by the dispensing machine has been identified at possessing a normal distribution with a mean of 16.5 ounces and a standard deviation of 0.1 ounce. Suppose 400 bags of chips

asked by UG on November 8, 2011
2. ### Statistics

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. -The probability that a bag of corn chips weighs more than 21 ounces is? -The probability that a bag of

asked by Ryan on October 27, 2013
3. ### Statistics

If it is claimed that the contents of soaps boxes sold weigh on average at least 20 ounces. The distribution of weight is known to be normal; We assume \sigma = 0.5σ=0.5 is known n=30 sample mean weight = 18.5 ounces. Test at the

asked by Anonymous on May 10, 2019
4. ### Statistics

Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 babies is selected. What is the probability that the average weight of

asked by Anonymous on June 18, 2013

A filling machine is designed to fill soda bottles with 16 ounces of soda. The distribution for the weight of the bottles is normal. Twenty bottles are selected and weighed. The sample mean is 15.3 ounces and sample standard

asked by Leo Elvis on March 16, 2015
1. ### Statistics

Reginald Brown an inspector from the department of weights and measures, weighs 15 eighteen-ounce cereal boxes of corn flakes. he finds their mean weight to be 17.78 ounces with a standard deviation of .4 ounces. are the cereal

asked by Mark on May 4, 2014
2. ### math

The amount of corn chips dispensed into a 12-ounce bag by the dispensing machine has been identified as possessing a normal distrubution with a mean of 12.5 ounces and a standard deviation of 0.2 ounces. What porportion of the 12

asked by Jeannie on August 7, 2010
3. ### Statistics

A packaging device is set to fill detergent power packets with a mean weight of 5 Kg. The standard deviation is known to be 0.01 Kg. These are known to drift upwards over a period of time due to machine fault, which is not

asked by Shams on October 26, 2010
4. ### science

The mean weight of 500 male students at a certain college is 151 pounds (lb), and the standard deviation is 15 lb. Assuming that the weights are normally distributed, find the probability of students weight (a) between 121 and 155