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!
Two independent samples have been selected, 92 observations from population 1 and 72 observations from population 2. The sample means have been calculated to be ~x= 6.9 and x2 = 11.4. From previous experience with these populations, it is known that the variances are of standard deviation 1= 37 and standard deviation 2| = 31.
(a) Find standard deviation (x1-x2).
(b) Determine the rejection region for the test of Ho: (mean 1 - mean 2) > 2.43 Use a = 0.04. z > _____________________
(c) Compute the test statistic. z = ______________________
(d) Construct a 96% confidence interval for (/j] -fi2).
Determine expectation of number of vehicles passing through this specified point in ten minutes.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
At the 0.10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
If we fit the least-squares line to the 12 data points (one for each month) we obtain the following results from a software package. Notice that temperature is taken as the explanatory variable and crawling age as the response.
At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
To determine the efficiency of the current ticket operation, Mike wishes to examine several queue operating characteristics.
Employees of a local university have been classified according to gender and job type. The following table provides data about the employees.
Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.
Describe why the normal distribution can be used as an approximation to binomial distribution. What conditions should be met to use the normal distribution to approximate the binomial distribution? Why is a correction for continuity essential.
Assume that you choose a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
The following data represent the cost of electricity for the period of July 2008 for a random sample of 50 one-bedroom apartments in a large city.
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
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