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According to a recent survey of New Jersey households, the probability that the residents own 2 cars if annual household income is over $25,000 is 80%. Of the NJ households surveyed, 60% had incomes over $25,000 and 70% had 2 cars. Based on the above information, what is the Probability that the residents of a NJ household do not own 2 cars and have an income over $25,000 a year?
a) What is the distribution and parameter(s) for N and for S?
consider the linear model for the randomized complete block design with a3 and b4. give the normal equation for this
suppose that john and david are shooting at a target. the probability that john hits the target is 17 and the
If measurements are made instead on 4 separate days and the mean result is compared with the criterion 3.5, what is the probability that Judy is diagnosed as hypokalemic?
a distribution has a standard deviation of s 12. find the z- score for each of the following locations in the
The study was done to distinguish people's religion with how many days that they have said they have been calm in past three days. Determine proportion of Catholics were calm for 1 out of 3 days?
question the associated press reports that the mean trading volume for equity and index options contracts was 3.6
Formulate the appropriate null and alternative hypotheses to test the manufacturer's belief. Using the sample mean of 99.2, compute a 90% confidence interval. Show the computation, and interpret in one sentence the interval you compute.
A farmer in Iowa owns 45 acres of land. He is going to plant each acre with wheat or corn. Each acre planted with wheat yields $200 profit, requires 3 workers, and requires 2 tons of fertilizer; each with corn yields $300 profit, requires 2 worker..
1. identify the sampling technique used to obtain this sample a person throws a phone book into the air five times
What is the real world value of the y-intercept and slope in a regression equation? Other than statistics problems, why should I care?
estimating the combined mean values for the given data.one sample of n 4 scores has a mean of m 10 and a second
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