Question: Aaron has two interval-level independent variables and an interval-level dependent variable. His R 2 value is 0.110. a. Aaron adds another independent variable, and this

Aaron has two interval-level independent variables and an interval-level dependent variable. His R² value is 0.110.

a. Aaron adds another independent variable, and this increases the R² to 0.155. What does this say about the contribution of the new variable?

b. Aaron adds a fourth independent variable to the statistical model, and this does not increase the R² value any further, and the null hypothesis for the new variable’s β value is not rejected. What does this say about the contribution of this additional new variable?

Step by Step Solution

★★★★★

3.42 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The new variable has contributed positively to the overall model and has improved the R2 va... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Statistics Social Sciences Questions!

Ahmed has four variables in his data. Three are independent variables: a nominal-level variable and two ratio-level variables. He also has an interval-level dependent variable. What is the...

What happens if we want several confidence intervals to hold at the same time (concurrently)? Do we still have the same level of confidence we had for each individual interval? (a) Suppose we have...

An engineer measures a dependent variable y and independent variables x 1 , x 2 , and x 3 . MINITAB output for the model y = Î² 0 + Î² 1 x 1 + Î² 2 x 2 +...

hello pls i need urgent help ith my this presentation today its just i have already done it but i just need you check if i have left something behind. Guidelines and Examples The team project is a...

Multiple Regression Lab A collector of antique grandfather clocks sold at auction believes that the price received for the clocks depend on both the age of the clocks and the number of bidders at the...

Use this and the excel file and create a new hypothesis : This case study concerns a problem of interest to real estate appraisers, tax asses- sors, real estate investors, and homebuyersnamely, the...

hw #2 exam 2 review 10points 1. For a given set of data, the larger the explained variance, Question 1 options: The larger the total variance The larger is the R-squared value The greater the slope...

Hw#2 exam 2 review multiple choice 1. For a given set of data, the larger the explained variance, Question 1 options: The larger the total variance The larger is the R-squared value The greater the...

Hi, you will find the instructions in the attached file, thank you, Using the regression results and the other computations from Assignment 1, determine the market structure in which the low-calorie...

Assignment is done in excel Studies have shown that the frequency with which shoppers browse Internet retailers is related to the frequency with which they actually purchase products and/or services...

Overview Students are required to do research on any processes which involves designing of flow charts and pseudocode. It doesn't have to be a computer processes, it can be anything. (Usage of...

The three concurrent forces acting on the screw eye produce a resultant force F R = 0. ?If and F 2 = 2/3 F 1 and F 1 is to be 90? from F 2 as shown, determine the required magnitude of F 3 expressed...

Using examples, explain any three reasons why project sustainability is a considered in writing proposals for funding

You have been asked to negotiate with the second highest priced supplier in a tender process. Their sales director attends the meeting and immediately says, Do not even mention the price because we...

A special problem arises for the nutrient alcohol consumption. There are often a large number of nondrinkers (alcohol consumption = 0) and another large group of drinkers (alcohol consumption > 0)....

Answer Problem 5.59 using the ln(nutrient) transformation for each nutrient value. Is the normality assumption more appropriate for log-transformed or un-transformed values, or neither?

Consider the nutrients saturated fat, total fat, and total calories. Plot the distribution of each nutrient for both the diet record and the food-frequency questionnaire. Do you think a normal...

Massey Machine Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $440,000 is estimated to result in $175,000 in annual pretax cost savings....

i need help solving this problem personal scanner to create the PDF. In a random sample of 50 cross-country runners, the mean body mass index (BMI) was 27.7 and the standard deviation was 6.12....

Required information [The following information applies to the questions displayed below.) Brodrick Company expects to produce 20,400 units for the year ending December 31. A flexible budget for...