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Suppose you have data from an experiment with 3 levels of the independent variable. Explain why an ANOVA followed by post-hoc tests is superior to three t-tests for independent groups. (Hint: what type of error would you make in each case.)
A raincoat manufacturer wants to know whether customers prefer any specific color over other colors in raincoats. He selects a random sample of 50 raincoats sold and notes the colors. At a = 0.10, is there a color preference for the raincoats?
The size of the home (reported below in thousands of square feet) increases the selling price (reported in $ thousands) also increases?
If the probability of getting caught is .02, the probability of getting a ticket is .97 and the probabiity of having to pay the ticket is .94, what is the direct cost of running a red light.
identify a peer-reviewed journal article published within the last 5 years that uses probabilities. this article should
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
An EMT Service keeps records of emergency calls. A study of 150 five-minute time intervals resulted in the distribution of number of calls as follows.
question the time that it takes to react to the brake lights on a decelerating vehicle is critical in avoiding rear-end
find the lower amp upper limits of a confidence interval if the mean is eighteen percent and the margin of error is
a poll was taken of a simple random sample of movie viewers in a test audience at a new romantic comedy. the movie was
a survey of adults ages 18-29 found that 82 use the internet.you randomly select 196 adults ages 18-29 and ask them if
The best measure of central tendency for this scenario would be to use median as it is not affected by extremely large values.
If a survey of 100 randomly selected united states residents is to be taken, what is the approximate probability that at least 60 will be under 31 years of age?
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