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!
Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they feel about the President's handling of the crisis in the financial markets. The results show that 575 out of the 1280 people polled say they either "approve" or "strongly approve" of the President's handling of this matter. Based on the sample referenced above, find a 95% confidence interval estimate for the proportion of the entire voter population who "approve" or "strongly approve" of the President's handling of the crisis in the financial markets.
Now, here's an interesting twist. If the same sample proportion was found in a sample twice as large-that is, 1150 out of 2560-how would this affect the confidence interval?
Please keep in mind that my evaluation of your post will be based on the extent to which you participated and fostered a positive and effective learning environment--for yourself and others.
A random sample of gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents?
An insurance company insures a large number of homes. The insured value, X, of a randomly selected home is assumed to follow a distribution with density function f(x)=4x-5 , for x>1. Given that a randomly selected home is insured for at least 2, what..
1. On the basis of the information above, is it possible to determine the mode of the distribution of 10 scores? If yes, what is the mode? Explain.
using the definitions from problem 6 define the following terms and how they relate to each othera. total variationb.
Under what circumstances is it desirable to use the finite population correction factor in describing the sampling distribution of a mean or a proportion?
a) If the result of the flip is heads, what is the probability that the coin is two headed?
Compute the mean number and median number of apples in a bag.
An economist wants to determine whether average Price/ Earnings (P/E) ratios differ for firm s in three industries. In dependent samples of five firms.
information regarding the price of a roll of camera film 35 mm 24 exposure for anbspsamplenbspof 12 cities worldwide is
At what point along the road should a fire engine wait in order to minimize the expected value of the square of the distance that it must travel to the next
Twenty percent of the patients require more than how many minutes? Select from the answers below.
Suppose interarrival times at a hospital emergency room during a weekday are exponentially distributed, with an average interarrival time of nine minutes.
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