Describe the meaning of the following geometric diagram for a 2-variable statistical model:DM1.232.1M.E3330.63299.7The two explanatory variables are non-orthogonal and the model with both variables is much better than themodel with just one.The two explanatory variables are orthogonalThe two explanatory variables are non-orthogonal and the model with both variables is about the same asthe model with just one.The two explanatory variables are non-orthogonal and the model with just one variable is nearly as good asthe model with both..

An orthogonal relationship between two variables means that the variables are independent and have…

Answered: Describe the meaning of the following…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following data was collected to explore how the average number of hours a student studies per night and the student's GPA affect their ACT score. The dependent variable is the ACT score, the first independent variable (x1) is the number of hours spent studying, and the second independent variable (x2) is the student's GPA. Effects on ACT Scores Study Hours GPA ACT Score 0 2 17 1 2 20 3 2 25 5 4 26 5 4 26 Step 1 of 2: Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places. AnswerHow to enter your answer (opens in new window) Copy Data Keypad Keyboard Shortcuts
A psychologist would like to examine the effects of a new drug on the activity level of animals. Three samples of rats are selected with n=5 in each sample. One group gets no drug, one group gets s small dose, and the third group gets a large dose. The psychologist records the activity level for each animal. The data from this experiment are presented below. No drug Small dose Large dose 5, 3 , 1 , 1 , 5 5, 5, 9, 6, 5 10, 12, 9, 6, 8 =3, SS=16 =6, SS=12 =9, SS=20 Do these data indicate any significant differences among the three groups? Test with α=0.05. Compute the effect size and interpret the result.
Suppose you pulled info regarding the sex of the victim and offender for murders in the United States. The data look something like this: Sex of Vic. Sex of Off. F M F 124 421 M 1609 3725 Assume that the sex of the victim is the response variable. What is the relative risk of being killed by female offender for male victims?
2. Find the least linear fit to the following data: * * 2 3 2 -3 -3 -1 55
Q3B All Fresh Seafood is a wholesale fish company based on the east coast of the U.S. Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S. Table #9.2.5 contains prices from both companies for specific fish types ("Seafood online," 2013) ("Buy sushi grade," 2013). Data is in following table: Fish All Fresh Seafood Prices Catalina Offshore Products Prices Cod 19.99 17.99 Tilapi 6.00 13.99 Farmed Salmon 19.99 22.99 Organic Salmon 24.99 24.99 Grouper Fillet 29.99 19.99 Tuna 28.99 31.99 Swordfish 23.99 23.99 Sea Bass 32.99 23.99 Striped Bass 29.99 14.99 Do the data provide enough evidence to show that a west coast fish wholesaler is more expensive than an east coast wholesaler? Test at the 5% level. (iv) Determine sample mean of differences x⎯⎯div Determine sample mean of differences x¯d Enter in decimal form to nearest ten-thousandth. Examples of correctly…
1. Effect size and Cohen's D: a. What is an effect size? What info does it tell you, when is it calculated, etc.? b. What is Cohen’s d? What info does it tell you about the independent variable and dependent variable? (think of how you write the sentences explaining your numbers)
Q1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?
Describe the meaning of the following geometric diagram for a 2-variable statistical model: M 20.0 80.0 80.0 20.0 F The two explanatory variables are non-orthogonal and the model with both variables is about the same as the model with just one. The two explanatory variables are orthogonal The two explanatory variables are non-orthogonal and the model with just one variable is nearly as good as the model with both. The two explanatory variables are non-orthogonal and the model both variables is about the same as the model with just one.

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