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Question: 1. For a given line of best fit, you compute that r = -0.7204 using n = 8 data points, and the critical value is = 0.707. Can the line be used for prediction? Why or why not
2. For a given line of best fit, you compute that r = 0 using n = 100 data points. Can the line be used for prediction? Why or why not?
how well do exams given during the semester predict perfomance on the final? one class had 3 tests during the semester.
At the 0.05 level of significance, can we conclude that Tom's filtering system is effective in reducing the weekly number of spam messages an employee receives?
What is the probability that a single, randomly selected piece of material will be defective? (Give the answer to two decimal places.)
real estates salesthe association of real estate agents for foreign properties areafp is a local body representing
How much should be charged as a single premium on each contract, so that there is a 95% chance that premiums will be sufficient to cover the aggregate claims for this group of 100 contracts.
No-shows. An airline offers discounted "advancepurchase" fares to customers who buy tickets more than 30 days before travel and charges "regular".
Suppose that the service rate to a waiting line system is 10 customers per hour (exponentially distributed). Analyze how the average waiting time is expected to change as the arrival rate varies from two to ten customers per hour (exponentially d..
an ad is placed in newspapers in four counties asking for volunteers to test a new medication for reducing blood
Consider the path flow formulation of the multi commodity flow problem of Section 8.8.7. Assume that for each OD pair (im, jm) there is a "reverse" OD pair (jm, im), and let cm > 0 be the ratio of the supplies of these two OD pairs.
the density function of the time z in minutes between calls to an electrical supply store is given byfz 110e-z
A random sample of 900 workers in a particular city found 342 workers who had full health insurance coverage. Find a 95% confidence interval for the true percent of workers in this city who have full health insurance coverage.
amounts lost by gamblers who took a bus to an atlantic city casino 99 confidence n 40x 189 and is known to be
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