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!
Q. What is Inference?
Ans.
Inference is the process of deriving conclusions based on facts or premises. We often make inferences based on the results of statistical studies.
For example, suppose a study found that a sample of American teenagers surf the web an average of 4 hours per night. What can we deduce about the population (all American teenagers) from which this sample was taken? Based on this sample, what estimate can we make about the average time all American teenagers surf the web?
First of all, before making any inferences, it is important to analyze the sample population and the sample data carefully. Are there unforeseen correlations between people in the sample? Does every person in your sample of American teenagers own their own computer? If so, then your sample data will be biased because not every household in America has a computer in it.
Let's assume your sample population is a good representation of American teenagers. There are still questions to consider before making inferences. Was the sample data collected during a typical week? Was the Internet atypically slow due to high traffic volume resulting in longer wait times? Were the teenagers from your sample in school or on summer vacation?
Explain why large lorries carrying heavy loads may not succed to go through a curve safely
Playbill magazine reported that the mean annual household income of its readers is $119,155 (Playbill, January 2006). Assume this estimate of the mean annual household income is ba
5. Perform a factorial MANOVA on the data. Before interpreting the multivariate results of the MANOVA, check outcomes that test other assumptions for this statistic: equality of co
The following data relating cigarette smoking and death rates for lung cancers in 14 states in the USA. The data are based in part on records concerning 1960 cigarette tax receipts
A car moves with constant velocity along a straight road. Its position is x1 = 0m at t1 = 0 seconds and is x2 = 56 m at t2 = 5.0 s. what is the cars position at t=2.5 seconds and
Assessment Two tests your ability to conduct a factorial ANOVA and make appropriate decisions regarding any follow up comparisons. The following data set is adapted from Jaccard an
A file on DocDepot in the assignments folder on doc-depot called bmi.mtp contains data on the Body Mass Index (BMI) of a population of Ottawa residents. The first column identifies
Ask questio How many women must be randomly selected to estimate the mean weight of women in one age group? We want 90% confidence that the sample mean is within 3.7 lbs of the po
Suppose that an individual has unearned income of $V and can choose how many hours she works per week at a wage of $w per hour. Assume that she has a total of 110 hours of time to
What is a purchase discount? A buy lower price is a deduction that may be available to a customer if the client will pay an account within a prescribed time. For example, a supp
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