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Energizer batteries are considered to be very reliable. Only 0.5% of batteries produced are defective. A purchaser would like to know the probability that more than 100 batteries are defective out of a shipment of 20,000 batteries. Which of the following commands will yield the correct answer?
In a test of the MicroSort method of gender selection, 51 babies are born to couples trying to have baby boys, and 39 of those babies are boys (based on data from the Genetics & IVF Institute).
How can you or your department decide whether or not the variation is important? How could using a mean difference test help?
Compute SS, variance, and standard deviation for following population of N = 7.Scores: 8, 1, 4, 3, 5, 3, and 4. The definitional formula works well with these scores. Use the definitional formula to compute SS.
1 consider a resource-allocation problem having the following
Statistician has a data set containing n1 = 7 values of a random variable X and n2 = 6values of a random variable Y . She is interested in using the run test to test the equality ofthe distribution functions.
If at least 11 questions must be answered correctly to pass the test, what is the probability that the student passes the test by purely guessing?
a horse race has 12 entries and one person owns 3 of those horses. assuming that there are no ties what is the
The lifetime of a super tough AAA battery is normally distributed wit mean of 28.5 hours and standard deviation of 5.3 hours. For a battery selected at random
consider taking a random sample of size 3 from a population of persons who smoke and recording how many of them if any
a brewerys filling machine is adjusted to fill bottles with a mean of 32.2 oz. of ale and a variance of 0.005.
if a random variable can take on a measurable infinite number of values such as a persons weight height or temperature
Firms planning to build new plants or make additions to existing facilities have become very conscious of the energy efficiency of proposed new structures and are interested in the relation between yearly energy consumption and the number of squar..
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