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Manufacture of a certain component requires three different machining operations. Machining time for each operation has a normal distribution, and the three times are independent of one another. The mean values are 30, 15, and 20 min, respectively, and the standard deviations are 2, 1, and 1.6 min, respectively. What is the probability that it takes at most 1 hour of machining time to produce a randomly selected component? (Round your answer to four decimal places.)
Do the data from this sample provide evidence for a significant increase in REM activity during exams? Use a one-tailed test with _ = .01. B.) Compute Cohen's d to estimate the size of the effect.
Examined the effect of body position on blood pressure
What does the binomial distribution chart look like? Can I use Excel to come up with this chart?
consider the experiments first draw a poisson random variable n with parameterlambda. then perform n independent
Using the .05 level of significance, what should we conclude about the theory that 24 hours is the natural cycle? That is, does the average cycle length under these conditions differ significantly from 24 hours?
What is the probability that Company B would charge more than Company A to drill a well - The depths of wells drilled in this area have a normal distribution with a mean of 250 feet and a standard deviation of 40 feet.
q1. a portfolio manager was analyzing the price-earnings ratio for this years performance. his boss said thatthe
A sample from each population was selected at random and using the Kruskal-Wallis test, H was computed to be 2.11. What is your decision at the 0.05 level of risk?
Please choose one of the probability constructs below. Then, identify a peer-reviewed journal article that highlights the construct. Compose a post in which you summarize and evaluate the construct's use in the research study.
one of the requirements of a probability distribution is that the sum of the probabilities must be 1 with a small
what is the major weakness of the hurwicz criterion?please answer in at least 3 sentences but no more than 6
What percentage of architects have Z scores (a) above .10, (b) below .10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, and (h) below -.10?
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