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The average flight from point A to point B takes 50 minutes with a standard deviation of 5 minutes. What is the probability a random sample of 4 flights will take between 43 and 48 minutes?
If a single test is run and indicates that oil is present, what is the revised probability that oil is actually present?
Once R is selected, the sum is compounded instantaneously for a year so that X= 50000 e^R dollars is the amount at the end of that year. Find the distribution function and the p.d.f. of X.
the following data represent the breaking strengths of samples of 20 gauge insulated copper wire from three different
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
The sample mean is 4.1 and the sample standard deviation is 1.4. It can be assumed that the population is normally distributed. The degrees of freedom associated with this are?
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents.
find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made
Find the probability of drawing either a king or a spade in a single draw from a pack of 52 playing cards.
john thurgood founded a company that translates chinese books into english. his company is currently testing a
Choose a construct you would like to measure. Create an operational definition of your construct using at least three peer-reviewed journal articles as references.
kyle averages 5 finished accounts per day. his standard deviation is 1 account per day and we want to know how many accounts he has to finish in a day to be at his 79.95 percentile
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