Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In the very preliminary planning of some harbor island developments, there was discussion regarding the cost estimates of building four bridges. There had as yet not been a preliminary soil survey in the harbor area, and it was recognized that the bridge costs are highly dependent on soil conditions. Therefore there was great uncertainty in the preliminary cost estimates. A spokesman, however, made this statement; "I recognize the uncertainty in the cost estimate of any bridge. But I am much more confident of our estimate for the total cost of all four bridges because of the likelihood that a high estimate on one will be balanced by a low estimate on another" Discuss this statement. Use your knowledge, simply, of the means and variances of sums of random variables to support your comments. If your initial intuition lies with that of the spokesman, be sure you resolve in your own mind why it is inconsistent. Compare both the variance and the coefficients of variation of the total cost versus those of an individual cost. If the four bridge sites are relatively close to one another, soil conditions, although unknown, are probably similar. What implications does this observation have for your analysis?
Compute the residuals when you regress loss on hard and plot the residuals versus tens. Interpret the result.
an experiment is conducted in which 60 participants each fill out a personality test but not according to the way they
we build a warter filter box for koi fish ponds using the vinyl ester resin. the box dimension at the base are 36 l x
It is known that a certain prescription drug produces undesirable side effects in 20% of all patients who use it. Among a random sample of nine patients using the drug, find the probability of each event
Assuming the scores are normally distributed, what percentage of sample means are between 7272and 7474?Round the standard score to the nearest tenth before using the z-score tables. Round the final answer to the nearest hundredth of a percent.
Google is noted for its generous employee benefits. The following data reflect the number of vacation days that a sample of employees at Google.
Using the 0.05 level of signifi- cance in a two-tail test, examine whether the percentage of sample homes having a fireplace could have differed from 62% simply by chance. Determine and interpret the p-value for the test.
A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6 percent with a standard deviation of 3.9 percent. The mean rate of return on a sample of 8 utility stocks was 10.9 percent with a standar..
A sample of 3000 observations has a mean of 85 and a standard deviation of 10. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
Given this information, for what time setting should the production manager set the automatic timer that pauses the production line while each cabinet dries?
if x is a binomial random variable where n100 and p.1 find the probability that x is less than or equal to 12 using the
Samples of daily production volume for the three methods are as follows. Assume that these are random samples from the populations of daily production volume. Use the median test to help determine whether the three methods are equally effective.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd