April 26, 2015

Search: ststistics

Number of results: 9

what is the main different of ststistics and maths
July 5, 2013 by zekarias kasssa

college ststistics
given x =237 u =2.00 and s=12.3 find z
June 4, 2012 by melba

college ststistics
find area under the standard normal curve A). p(z>0.58) B. p(-1.10<z<0)C. P(-1.60>=<z<2.09)
June 3, 2012 by melba

college ststistics
given x is a noramlly distributed random variable with a mean of 28 and a sd of 7 find p(x<28)
June 11, 2012 by melba

give an example of an article that shows the chi-square assumption method of ststistics
July 3, 2011 by jonja

A sample of 3000 observations has a mean of 86 and a standard deviation of 13. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
September 18, 2013 by myself

each tire of an 18 wheeler has a probability of 5% TO maintain on a 10000 mile trip. WhAt is the probability that no more than 3 tires need maintenance during this trip. How do i do this?
January 20, 2011 by pat

A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the distribution of means of ...
October 5, 2009 by stat

college ststistics
A. find the binomial probability p(x=5) where n=14 and p=0.30. B. setup without solving the binomial probability p(x is at most 5) using probability notation C. how would you find normal approximation to the binomial probability p(x=5) in part A. please show how you would ...
June 3, 2012 by melba

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