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Acme Manufacturing Company requires all of its 5000 employees to take a drug test. Suppose 2% of the employees actually use drugs (although the company does not know this number). The drug test is 95% accurate.
State a conclusion about the accuracy of the test.
jane wants to setup a photo shop. the cost to rent an office is 150 per week. the variable cost of making one photo is
1. the study you will evaluate for your assignment isbinge drinking and alcohol-related behaviours amongst pacific
Descriptives of a continuous variable: mean, median, skewness, kurtosis, standard deviation and graph of that variable Cross tabulation of two variables
Tim is a plumber who joined a barter club. This year Tim exchanges plumbing services for a new roof. The roof is properly valued at $2,500, but Tim would have only billed $2,200 for the plumbing services. What amount of income should Tim reco..
A random sample of 900 homeowners in Delaware County is taken in order to estimate the average amount of money spent by homeowners on landscaping this spring. It turns out that this group spent an average of $200 with a standard deviation of $..
How many turnstiles must be opened in each direction every morning and describe the suppositions underlying the solution of this problem by using queuing theory.
Describe what is meant by the statement that "the margin of error was given as ±1 percentage point." What confidence interval is USA Today talking about?
What is the probability that he is able to go on the trip
Nonlinear regression. The following data gives the distance from the sun (in millions of miles) and the length of year (in earth years) for the traditional 9 planets in the solar systems (including pluto, which is technically a dwarf-planet as..
A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years. A random sample of 600 young adults not enrolled in college was selected and 150 of them had at least one motor ve..
Using regression as the procedure, produce the forecast of weekly sales for the periods Jan 27, 2014 through Jan 19, 2015 - show a graph of the historical and forecasted sales in one graph
You take a random sample of size 100 from a normal population with unknown mean but known standard deviation 40. You plan to test H(null): mu=85 versus H(alternative): mu > 85. Your procedure will be to observe the sample then reject H(null) is xbar>..
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