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!
1. An experiment was performed on a certain metal to determine if the strength is a function of heating time (hours). Results based on 20 metal sheets are given below. Use the simple linear regression model.
∑X = 40∑X2 = 200∑Y = 70∑Y2 = 545∑XY = 320Find the estimated y intercept and slope and write the equation of the least squares regression line. Estimate Y when X is equal to 3 hours. Also determine the standard error, the Mean Square Error, the coefficient of determination and the coefficient of correlation.
2. Use the following results obtained from a simple linear regression analysis with 15 observations.
YHat= 35.5- (1.25)XR2= 0.8745 and sb1 = 0.50
Interpret regression results and the value of the coefficient of Determination. Predict the value of Y when X is equal to 10. Calculate the correlation coefficient between Y and X. Test to determine if there is a significant relationship between the independent and dependent variable at a = 0.05. Perform a two-tailed test.
Demonstrate how the test statistics you calculated in parts (b) and (c) relate to the statistics M and S you get from SAS.
1. What techniques are used to solve decision making problems under uncertainty? Which technique results is an optimistic decision? Which techniques results in pessimistic decision? Give examples of each.
Directions: Read the following problem. In your drop box submission, please include the following information: a. Determine if the problem is either a test of hypothesis, a confidence interval or something else and specify the 'key words' found in th..
Non parametric tests
How would you interpret these results in terms of the likely precision of the sample means as estimators of their respective population means?
Test the Administration's claim
Interpret the coefficients - what does the regression line tell you about the heights of sons of tall fathers - what is the standard error of estimate? Interpret its value.
ANOVA and Factorial Designs
Research question - Is there a positive correlation between the amounts of profits (Dependent Variable) and total sales (Independent Variable) based on the costs of the process of production and distribution?
Significant difference between their mean levels of wages?
Given a normal distribution with µ =50 and σ =4, what is the probability that a. X > 43?b. X
If a regression line (linear regression line) is said to "fit" the data presented in a scatter plot, what relation is minimized between the observed data, Y, and the predicted output for the regression line?
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