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It has been claimed that no more than 5% of the units coming off an assembly line are defective.
Formulate a null hypothesis and an alternative hypothesis for this situation. Will the test be one-tail or two-tail? Why? If the test is one-tail, will it be left-tail or right-tail? Why?
the random variable x is normally distributed as xnmicro?2. it is known that px?660.03359 and px?810.1151a. give a
Find out the p-value associated with test of hypothesis you conducted?
Consider a liter of 5 puppies (3 brown/2 black). Draw a probability tree indicating the probabilities for selecting 3 puppies without replacement? What is the probability that I will select 3 brown puppies? 1 brown and 2 black puppies? At least 1 ..
A standard deviation of $125. A) what is the point estimate of the population mean? B) develop a 95% confidence interval for the population mean.
A friend of mine is giving a dinner party. His current wine supply includes 12 bottles of zinfandel, 10 of merlot, and 8 of cabernet. If he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to do this?
what are some examples of two measurement-level quantitative variables that are likely to be correlated because they
A sample of 120 observations revealed that p = .30. At the .05 significance level, can the null hypothesis be rejected?
As part of your answer, draw a standard normal curve and shade the area under the curve that represented the answer to the question. What minimum score would a student need in order to score better than 77% of those taking the test?
studies find that in a random sample of 3000 adults aged 18 and over 1410 owned an mp3 player. the 95 large-sample
Using the .05 significance level, can we conclude that there is a positive association between the two variables?
Unpaid invoices. The controller's office of a corporation is concerned that invoices that remain unpaid after 30 days are damaging relations with vendors. To assess the magnitude of the problem, a manager searches payment records for invoices that..
Find the mean, median, range and standard deviation for the 2005 returns and estimate with 99% confidence the average order in the city.
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