The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to 10, measures the "general anxiety" of an individual, with higher GAS Scores corresponding to more anxiety. (Dr. Elbod's assessment of anxiety is based on a variety of measurements, both physiological and psychological.) We're interested in making predictions about individuals' sleep behavior based 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 v) for each of the fifteen adults participating in a study. A scatter plot of the data is shown in Figure 1. Also given is the product of the GAS score and the sleep time for each of the fifteen adults. (These products, written in the column labelled "xy", may aid in calculations.) Sleep time, y (in hours) GAS Score, x ху 3.1 6.9 21.39 4.0 6.9 27.6 10- 8.0 5.2 41.6 1.0 7.0 7 6.9 6.6 45.54 8.1 7.0 56.7 9.1 6.0 54.6 5.1 6.5 33.15 6.2 40.3 6.5 6.0 8.0 48 7.5 25.5 3.4 GAS Score 8.8 33.44 3.8 Figure 1 5.5 49.5 9.0 1.8 8.6 15.48 Sleep time (in hours) www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBGBIH_OB3uhhqwxlXoS5SIQhuX6YjFjUgDF7j0 59KCY17DJeOkKzQ4tC7FqjhmhW5pvlzjiR01KzbOrSonl7T6tJxKon9o?1oBw7QYjlbavbSPXtx-YCjsh_7 O CORRELATION AND SIMPLE LINEAR REGRESSION Emmanuel V Using summations to compute the sample correlation coefficien... Sleep time, y (in hours) GAS Score, X ху 3.1 6.9 21.39 4.0 6.9 27.6 10+ 8.0 5.2 41.6 1.0 7.0 7. Aa 6.9 6.6 45.54 8.1 7.0 56.7 9.1 6.0 54.6 5.1 6.5 33.15 6.5 6.2 40.3 6.0 8.0 48 3.4 7.5 25.5 GAS Score 3.8 8.8 33.44 Figure 1 5.5 49.5 9.0 1.8 8.6 15.48 8.7 13.92 1.6 What is the slope of the least-squares regression line for these data? Carry your intermediate computations to at least four decimal places and round your answer to at least two decimal places. (If necessary, consult a list of formulas.) Explanation Check 2020 McGraw Hill Education. All Rights Reserved. Terms of Use I Privacy Accessibility Type here to search Sleep time (In hours) The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to 10, measures the "general anxiety" of an individual, with higher GAS Scores corresponding to more anxiety. (Dr. Elbod's assessment of anxiety is based on a variety of measurements, both physiological and psychological.) We're interested in making predictions about individuals' sleep behavior based 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 v) for each of the fifteen adults participating in a study. A scatter plot of the data is shown in Figure 1. Also given is the product of the GAS score and the sleep time for each of the fifteen adults. (These products, written in the column labelled "xy", may aid in calculations.) Sleep time, y (in hours) GAS Score, x ху 3.1 6.9 21.39 4.0 6.9 27.6 10- 8.0 5.2 41.6 1.0 7.0 7 6.9 6.6 45.54 8.1 7.0 56.7 9.1 6.0 54.6 5.1 6.5 33.15 6.2 40.3 6.5 6.0 8.0 48 7.5 25.5 3.4 GAS Score 8.8 33.44 3.8 Figure 1 5.5 49.5 9.0 1.8 8.6 15.48 Sleep time (in hours) www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBGBIH_OB3uhhqwxlXoS5SIQhuX6YjFjUgDF7j0 59KCY17DJeOkKzQ4tC7FqjhmhW5pvlzjiR01KzbOrSonl7T6tJxKon9o?1oBw7QYjlbavbSPXtx-YCjsh_7 O CORRELATION AND SIMPLE LINEAR REGRESSION Emmanuel V Using summations to compute the sample correlation coefficien... Sleep time, y (in hours) GAS Score, X ху 3.1 6.9 21.39 4.0 6.9 27.6 10+ 8.0 5.2 41.6 1.0 7.0 7. Aa 6.9 6.6 45.54 8.1 7.0 56.7 9.1 6.0 54.6 5.1 6.5 33.15 6.5 6.2 40.3 6.0 8.0 48 3.4 7.5 25.5 GAS Score 3.8 8.8 33.44 Figure 1 5.5 49.5 9.0 1.8 8.6 15.48 8.7 13.92 1.6 What is the slope of the least-squares regression line for these data? Carry your intermediate computations to at least four decimal places and round your answer to at least two decimal places. (If necessary, consult a list of formulas.) Explanation Check 2020 McGraw Hill Education. All Rights Reserved. Terms of Use I Privacy Accessibility Type here to search Sleep time (In hours)
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
The genotype of an individual with the dominant phenotype can be determined best by reproduction with a. The recessive genotype or phenotype. b. A hetero zygote. c. The dominant phenotype. d. The...
-
The work W0 accelerates a car from 0 to 50 km/h. (a) Is the work required to accelerate the car from 50 km/h to 150 km/h equal to 2W0, 3W0, 8W0, or 9W0? (b) Choose the best explanation from among the...
-
The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to 10, measures the "general anxiety" of an individual, with...
-
The Louisiana Grill The Louisiana Grill (TLG) is a restaurant in Toronto. TLG is a regional restaurant created and operated by Alex Ven- tresca, a former football player from New Orleans. The company...
-
Scheduled payments of $900 due in 3 months with interest at 11% compounded quarterly and $800 due in 30 months with interest at 11% compounded quarterly are to be replaced by two equal payments. The...
-
This section looks at US recessions over the past 60 years. To work out this problem, first obtain quarterly data on US output growth for the period 1960 to the most recent data from www.bea.gov....
-
The case study that involved balancing a gas turbine that could not pass through its first critical frequency called for use of the existing proximity probe outputs input into a digital FFT using...
-
Determine the present value of $750,000 to be received in three years, using an interest rate of 12%, compounded annually. a. Use the present value table in Exhibit 4. b. Why is the present value...
-
The department head has the impression that some employees are less satisfied with their manager if the employee has worked in other companies. What is the correlation between Number of Companies...
-
Suppose you are building a first-person shooter game, where virtual zombies are climbing up a wall while the player, who is moving left and right in front of the wall, is trying to knock them down...
-
Refer to Table 15-6. Suppose the monopolist has total fixed costs equal to $5 and a variable cost equal to $4 per unit for all units produced. What is the total profit if she operates at her...
-
You decide to open an individual retirement account (IRA) at your local bank that pays 8 percent/year/year. At the end of each of the next 40 years, you will deposit $2,000 per year into the account...
-
Let \(C\) denote Cantor's discontinuum which is obtained if we remove recursively the open middle third of any remaining interval: \[[0,1] \leadsto\left[0, \frac{1}{3} ight] \cup\left[\frac{2}{3}, 1...
-
If LaPearlas long-term debt and paid-in capital accounts remain at their 2005 levels, the tax rate remains at the 2005 rate, and all other income statement and balance sheet accounts are sales-driven...
-
Which of the following defenses best describes the role of HiFly in the acquisition scenario? A. Crown jewel. B. Pac-Man. C. White knight. Modern Auto, an automobile parts supplier, has made an offer...
-
a) Use the (two-dimensional, deterministic) chain rule \(d(F \circ G)=F^{\prime} \circ G d G\) to deduce the formula for integration by parts for Stieltjes integrals: \[\int_{0}^{t} f(s) d g(s)=f(t)...
-
(1 point) Load Factor and Probing (SLO) In an open addressing hash table using linear probing, the average number of probes for successful, S, and unsuccessful, U, search are: S (1 U 1+ (1-A) where A...
-
Banner Company acquires an 80% interest in Roller Company for $640,000 cash on January 1, 2013. The NCI has a fair value of $160,000. Any excess of cost over book value is attributed to goodwill. To...
-
Solenoids produce magnetic fields that are relatively intense for the amount of current they carry. To make a direct comparison, consider a solenoid with 48.0 turns per centimeter, a radius of 1.27...
-
Consider the following three transitions in a hydrogen atom: (A) ni = 5, nf = 2; (B) ni = 7, nf = 2; (C) ni = 7, nf = 6. Rank the transitions in order of increasing (a) wavelength and (b) frequency...
-
A rare 1918 "Jenny" stamp, depicting a misprinted, upside-down Curtiss JN-4 "Jenny" airplane, sold at auction for $525,000. A collector uses a simple magnifying glass to examine the "Jenny,"...
-
Reconsider the regression models in Problem 12.6, parts a-e. Suppose the error terms in these models were multiplicative, not additive. Rework the problem under this new assumption regarding the...
-
Sketch the expectation function for the logistic growth model (12.34) for \(\theta_{1}=1, \theta_{3}=1\), and values of \(\theta_{2}=1,4,8\), respectively. Overlay these plots on the same \(x-y\)...
-
For the models shown below, determine whether it is a linear model, an intrinsically linear model, or a nonlinear model. If the model is intrinsically linear, show how it can be linearized by a...
Study smarter with the SolutionInn App