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In 1992,the FAA conducted 86,991 drug test on applicants for employment,1,143 were positive(a)construct a 95% confidence intervalfor the population proportion of positive drug tests.Why is the normality assumption not a problem despite the very small value of p?
Please help me with the following 3 problems. There are only a few that I can't seem to figure out. Please use excel and show me a step by step solution to give me a full understanding. Thanks a lot!
Assume the population is normally distributed, the confidence level is 95%, n = 12, and σ is unknown.
Manufacturer of mole and gopher poison has experienced the following monthly demand for an environmentally sound pesticide poison. Using a Average method, what would the forecast have been for July?
How large a sample should be taken if the desired margin of error is?
At a large commercial bakery, one of the measures familiar with evaluate employees is the number of broken cookies per 1000 produced. The quality control department wants to determine if there is a relationship between years of experience and bro..
If an employee is selected at random, what is the probablity that the employee is female or works as a member of admin?
Explain the difference of your outlook on statistics after having studied it for whatever period of time you have done so as oppose to the time before taking up the study.
A test of 45 capsules had a mean weight of 20.9 milligrams and a standard deviation of 0.3 milligrams. Test the makers claim at the 95% confidence level.
Suppose that you wish to perform a nonparametric test for a difference among the medians of three or more independent populations. Which of these tests would be appropriate?
The waiting room for jury selection has 40 women and 30 men to choose from. A jury of 12 is selected from these 70 people, what is the probability that exactly 5 of the jury members will be women?
Draw the histogram showing population distribution. Locate value of population mean in your sketch and make the estimate of standard deviation.
Give the expected value and standard deviation of defective shoes in the ShoeFit store order.
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