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!
Let's say I have a new drug that I think helps diabetics. So I perform clinical trials in accordance with the FDA requirements. I give one randomly selected groups of diabetics the drug, and another sample gets a placebo pill. The diabetics who get the pill improve, the controls do not. I perform a t test on the data. What is the independent variable? The dependent variable? The null hypothesis?
The above is a cross sectional research design. Here is another strategy. I have only one group of diabetics. I evaluate them and give them the pill. I bring them in next week and evaluate them again, give them another pill. The following week I do the same, and on and on for several months. This is a longitudinal design, or a "repeated measures" design. I would have to analyze this with a "dependent" t test, or since the groups are measured over and over again, a repeated measures ANOVA. In these designs, the subjects are used as their own controls.
Which strategy or research design do you think is best?
Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Explain.
Develop a linear regression equation for these data and forecast how much money Robert will win if he spends $30.
Determine the average score for ERAU graduates? Determine the value of test statistic? Significance level?
Mutual funds are classified as large-cap funds, medium cap funds, or small-cap funds, depending ont eh capitalizaiton of the companies in the fund.
Find out the forecast value utilizing three month moving average method, weighted moving average method, exponential smoothing and regression methods.
What shape curve do you get when your data set has the mean, median, and mode all with the same value? Could the value of the sample mean and the value of the population mean ever be the same?
Generate three random observations from the uniform distribution between -10 and 40 by using the following random numbers:
The events are defined as follows: Let A be the event that the player selected has a number from 1 to 8. Let B be the event that the player selected is a guard. Let C be the event that the player selected is a forward. Let D be the event that the pla..
The difference between expected payoff under certainity and expected value of the best act without certainity is the expected:
Find the probability of getting a queen and a spade.
test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples of population members that might have been omitted:
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