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Two points are randomly on a line of length 14 so as to be on opposite sides of the midpoint of the line. In other words, the two points X and Y are independent random variables such that X is uniformly distributed over [0,7) and Y is uniformly distributed (7,14]. Find the probability that the distance between the two points is greater than 3.
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
Suppose it is desired to estimate the population mean number of miles with a margin of error of ± 2 miles at 95% confidence. Do the data provide this desired level of precision? What action, if any, would you recommend be taken?
suppose that in the setting of the previous exercise you are willing to settle for a margin of error of $1000. will the required sample size be larger or smaller?
Based on the Correlation following are Multiple choices question. If the correlation coefficient among two variables is equal to zero, what can be said of the variables X and Y.
What is the probability that the kickoff will go between 60 and 75 yards if the average kickoff is 50 yards with a variance of 49?
Make an interval estimate the population means score for the daycare children so that you are 95% confident that the true mean is in your interval.
The number of traffic accidents that occurs on particular stretch roas during a month follows a Poisson distribution with mean of 8.5. Find the probability of observing exactly three accidents of this stretch of road next month.
a sample of 144 students is taken from a population of 2000 high school students to estimate the proportion of students
Use the confidence level and sample data to find a confidence interval for estimating the population mean m.
a paired t-test was performed to test the null hypothesis h0 ?d 0 versus the alternative h1 ?d ? 0. the observed test
1.ginger root is used by many as a dietary supplement. a manufacturer of supplements produces capsules that are
some laboratory furnace have small glass windows so that samples may be observed. one problem associated with such
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