Mathematics, 20.03.2020 08:45 narutoxptheninja
A maintenance manager must test a new repair method that should increase the expected time between repairs. For each machine used in the study, she recorded the last time between failures prior to using the new method, which she called, "Current", and the first time between failures after using the new method, which she called "New". These are the times (in hours):
Machine 1 2 3 4 5 6 7 8 9 10
Current 155 222 346 287 115 389 183 451 140 252
New 211 345 419 274 244 420 319 505 396 222
A) Conduct the most appropriate hypothesis test using a 0.05 significance level. Use the rejection region approach. (You must clearly specify 5 steps for your test.)
B) Calculate the p-value for the test in A
C) Construct a 95% two-sided confidence interval for the true mean difference.
Answers: 3
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7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.
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Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15
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Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal, mutualistic, or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp
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A maintenance manager must test a new repair method that should increase the expected time between r...
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