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If a one-sided test indicates that the null hypothesis can be rejected where α = 0.05, would a two-sided test performed on the same data set be significant at the 0.05 level? Why or why not?
North Manufacturing has a demand for 1,000 pumps each year
Statistics. A manufacturer claims that the mean lifetime of its fluorescent light bulbs is 1500 hours. A homeowner selects 40 bulbs and finds the mean lifetime to be 1480 hours with a population standard deviation of 80 hours. Test the manufactur..
a recent report by the american medical association stated the average annual salary of psychiatrists is 189121 with a
Based on these results, does te diet appear to be effective? Does the diet appear to have practical significance?
a missile guidance system has five fail-safe components. the probability of each failing is 0.05. find these
Write a paper of no more than 750 words in which you discuss the difference between comparative and ratio analysis. Differentiate and share the purpose and importance of each.
a university has 1000 computers available for students to use. each computer has an 850-gigabyte hard drive. the
there are 1000 students in the senior class at a certain high school. the high school offers two advanced placement
A marketing agency is interested in the buying habits of those who shop online versus those who shop in person. In your discussion post, address each of the following and explain your reasoning as to why you picked the specific scale:
A telephone call arrived at a switchboard at random within a one-minute interval. The switch board was fully busy for 15 seconds into this one-minute period. What is the probability that the call arrived when the switchboard was not fully busy?
If the service manager wants to 95% confident that the overall time is correctly estimated, with a 3 percent probability of error, what sample size should be taken.
Find, using Chebyshev's inequality, a lower bound for the probability that the number of cars arriving at the intersection in 1 hour is between 70 and 130.
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