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!
The Small Business Administration (SBA) wishes to estimate the mean annual sales of companies that employ fewer than 20 persons. Historical data suggest that the standard deviation of annual sales of such companies is about $5500.
(a) If the SBA wants to estimate mean annual sales to within $1000 with a probability of 0.90, how large a sample should be chosen?
(b) Suppose that the SBA has a tolerable type I error rate of 10%. It wishes to detect a difference in mean annual sales of $500 with a probability of 0.95. How large a sample should be chosen?
To find out the efficiency of the current ticket operation, Mike wishes to examine several queue operating features.
Suppose that the moment generating function of (X, Y )t is ψX,Y (t, u) = exp{2t + 3u + t2 + atu + 2u2}. Determine a so that X + 2Y and 2X - Y become independent.
An individual is considered to have the dominant characteristic if the person has the AA or Aa genetic trait. If we were to choose an individual from this city at random, what is the probability that this person has the dominant characteristic?
If the sample size had been 15 rather than 40, could the probability requested in part (a) be calculated from the given information?
In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.
Which test do we use to see if the difference in our sample is statistically significant? Why? Should it be one or two-tailed?
Calculate the horizontal component of the initial velocity of the shell.
suppose the age distribution in sydney is as followsunder 18 2218-25 1826-50 3651-65 10over 65 14total 100a researcher
A manufacturer uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standard deviation of 21.1cm.
The union for a particular industry has determined that the standard deviation of the daily wages of its workers is $20.. A random sample of 100 workers in this industry has a mean daily wage of $116.
an insurance company believes that people can be divided into two classes -- those that are accident prone and those
The duration of a voice telephone call is an exponential random variable T with expected value E[T] = 3 minutes. Data calls tend to be longer than voice calls on average. Observe a call and reject the null hypothesis that the call is a voice call ..
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