Sleep time, y(in hours)GAS score, x6.08.16.55.910-5.16.07.95.79-7.16.78.1.07.48.17.27-3.06.92.18.16.9.05.89.26.23.97.03.57.71.78.7Figure 13.88.5Send data to ExcelUsing this information, answer the following:1. Fill in the blank: For these data, GAS scores that are greater thanthe mean of the GAS scores tend to be paired with sleep times thatChoose onearethe mean of the sleep times.2. According to the regression equation, for an increase of one in GASscore, there is a corresponding decrease of how many hours in sleeptime?3. From the regression equation, what is the predicted sleep time (inhours) when the GAS score is 6.0? (Round your answer to at least onedecimal place.)4. What was the observed sleep time (in hours) when the GAS scorewas 6.0? The well-known psychologist Dr. Elbod has established what he calls hisGeneralized Anxiety Scale (GAS). The GAS, which is a scale from o to 10,measures the "general anxiety" of an individual, with higher GAS scorescorresponding to more anxiety. (Dr. Elbod's assessment of anxiety isbased on a variety of measurements, both physiological andpsychological.)圖AaWe're interested in making predictions about individuals' sleep behaviorbased on their GAS scores. The bivariate data below give the GAS score(denoted by x) and the number of hours of sleep last night (denoted by y) for each of the fifteen adults in a study. The least-squares regressionline for these data has equation =8.36 – 0.25.x. This line, along with a scatterplot of the sample data, is shown in Figure 1.

Regression Line y = 8.36 -0.25x

2. According to the regression equation, for an increase of one in GAS score, there is a corresponding decrease of how many hours in sleep U time? 3. From the regression equation, what is the predicted sleep time (in hours) when the GAS score is 6.0? (Round your answer to at least one |U decimal place.) 4. What was the observed sleep time (in hours) when the GAS score was 6 0?

2. According to the regression equation, for an increase of one in GAS score, there is a corresponding decrease of how many hours in sleep U time? 3. From the regression equation, what is the predicted sleep time (in hours) when the GAS score is 6.0? (Round your answer to at least one |U decimal place.) 4. What was the observed sleep time (in hours) when the GAS score was 6 0?

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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