The accompanying summary quantities resulted from a study in which x was the number of photocopy...
The accompanying summary quantities resulted from a study in which x was the number of photocopy machines serviced during a routine service call and y was the total service time (min).
n = 17 text( ) sum (y - y^^\_)^2 = 22,268.07 text( )sum (y - y^^\^)^2 = 2607.57
(a) What proportion of observed variation in total service time can be explained by a linear probabilistic relationship between total service time and the number of machines serviced? (Give the answer to three decimal places.)
___________
(b) Calculate the value of the estimated standard deviation
se. (Give the answer to three decimal
places.)
se = _________
What is the number of degrees of freedom associated with this estimate?
Homework Answers
Add Answer to:
The accompanying summary quantities resulted from a study in
which x was the number of photocopy...
The accompanying data resulted from a study of the relationship between y = brightness of finished...
The accompanying data resulted from a study of the relationship between y = brightness of finished paper and the independent variables x1 = hydrogen peroxide (% by weight), x2 = sodium hydroxide (% by weight), x3 = silicate % by weight), and X4 = process temperature. y 0.1 0.3 2.5 160 82.9 0.2 0.2 1.5 145 83.9 0.4 0.2 1.5 145 84.9 0.5 0.3 2.5 160 85.5 0.3 0.1 2.5 160 85.2 0.2 0.4 1.5 145 83.4 0.4 | 0.4...
The accompanying data represent x = treadmill run time to exhaustion (min) and y = 20...
The accompanying data represent x = treadmill run time to exhaustion (min) and y = 20 km ski time (min). x 7.7 8.4 8.7 9.0 9.6 9.6 9.9 10.2 10.5 11.1 11.7 y 71.0 71.4 65.0 68.7 64.4 69.4 63 64 66.6 62.8 61.6 (d) Calculate the value of r2. (Give the answer to four decimal places.) (e) Calculate the value of se. (Give the answer to four decimal places.)
The accompanying data resulted from an experiment in which weld diameter x and shear strength y...
The accompanying data resulted from an experiment in which weld diameter x and shear strength y (in pounds) were determined for five different spot welds on steel. A scatterplot shows a pronounced linear pattern. The least-squares line is -940.908.60x. Because 1 lb 0.4536 kg, strength observations can be re-expressed in kilograms through multiplication by this conversion factor: new y = 0.4536(old y), what is the equation of the least-squares line when y is expressed in kilograms? (Give the answer to...
When coastal power stations take in large quantities of cooling water, it is inevitable that a...
When coastal power stations take in large quantities of cooling water, it is inevitable that a number of fish are drawn in with the water. Various methods have been designed to screen out the fish. A particular article examined intake fish catch at an English power plant and several other variables thought to affect fish intake. y = fish intake (number of fish) x1 = water temperature (°C) x2 = number of pumps running x3 = sea state (values 0,...
Find the standard error of estimate Se and interpret the result. The number of initial public offer ngs o stock issued in a 10-year penod and the total proceeds o these offerings (in milions are show...
Find the standard error of estimate Se and interpret the
result.
The number of initial public offer ngs o stock issued in a 10-year penod and the total proceeds o these offerings (in milions are shown in the able The equation of the regress on line is y = 47.871 + 18.224.89 Complete parts a and b 414 | 461 | 688 | 483 | 490 | 391 | 68 | 74 | 190 | 152 Proceeds, 19,111 28,676 42,627...
The table shows the number of goals allowed and the total points earned (2 points for...
The table shows the number of goals allowed and the total points earned (2 points for a win, and 1 point for an overtime or shoc season. The equation of the regression line is y = -0.600x + 225.826. Use the data to answer the following questions. (a) Find the coefficient of determination, and interpret the result. (b) Find the standard error of the estimate, se, and interpret the result. Goals 212 210 219 223 259 258 273 200 217...
I want all parts answers, and the answer needs to correct. the answers need include from...
I want all parts answers, and the answer needs to correct.
the answers need include from part a) to part n)
h.) E(X) (Give decimal answer to two places past the decimal.) Tries 0/5 1.) E(Y) (Give decimal answer to two places past the decimal.) ries 0/5 j.) E(XY) (Give decimal answer to two places past the decimal.) Tries 0/5 k.) Cov(X,Y) (Give decimal answer to THREE places past the decimal.) Tries 0/5 1.) Standard deviation of X (Give decimal...
A sociologist is interested in the relation between x = number of job changes and y...
A sociologist is interested in the relation between x = number of job changes and y = annual salary (in thousands of dollars) for people living in the Nashville area. A random sample of 10 people employed in Nashville provided the following information. x (number of job changes) 3 7 6 6 1 5 9 10 10 3 y (Salary in $1000) 34 33 38 32 32 38 43 37 40 33 In this setting we have Σx = 60,...
Various occupational groups differ in their diets? A British study of this question compared 90 d...
various occupational groups differ in their diets? A British study of this question compared 90 drivers and 70 conductors of London double-decker buses. The condutors' jobs require more physical ivity. The article reporting the study gives the data as "Mean daily consumption ± (se)." Some of the study results appear below Drivers Conductors Total calories 2826 ± 15 2841 ± 18 Alcohol (grams) 0.24 t 0.08 0,38 0.14 (a) Give x and s for each of the four sets of...
The table shows the number of goals allowed and the total points earned (2 points for...
The table shows the number of goals allowed and the total points earned (2 points for a win, and 1 point for an overtime or shootout loss) by 14 ice hockey teams over the course of a season. The equation of the regression line is y = -0.582x + 222.271. Use the data to answer the following questions (a) Find the coefficient of determination, and interpret the result (b) Find the standard error of the estimate, se, and interpret the...
The accompanying data resulted from a study of the relationship between y = brightness of finished paper and the independent variables x1 = hydrogen peroxide (% by weight), x2 = sodium hydroxide (% by weight), x3 = silicate % by weight), and X4 = process temperature. y 0.1 0.3 2.5 160 82.9 0.2 0.2 1.5 145 83.9 0.4 0.2 1.5 145 84.9 0.5 0.3 2.5 160 85.5 0.3 0.1 2.5 160 85.2 0.2 0.4 1.5 145 83.4 0.4 | 0.4...
The accompanying data resulted from an experiment in which weld diameter x and shear strength y (in pounds) were determined for five different spot welds on steel. A scatterplot shows a pronounced linear pattern. The least-squares line is -940.908.60x. Because 1 lb 0.4536 kg, strength observations can be re-expressed in kilograms through multiplication by this conversion factor: new y = 0.4536(old y), what is the equation of the least-squares line when y is expressed in kilograms? (Give the answer to...
Find the standard error of estimate Se and interpret the
result.
The number of initial public offer ngs o stock issued in a 10-year penod and the total proceeds o these offerings (in milions are shown in the able The equation of the regress on line is y = 47.871 + 18.224.89 Complete parts a and b 414 | 461 | 688 | 483 | 490 | 391 | 68 | 74 | 190 | 152 Proceeds, 19,111 28,676 42,627...
The table shows the number of goals allowed and the total points earned (2 points for a win, and 1 point for an overtime or shoc season. The equation of the regression line is y = -0.600x + 225.826. Use the data to answer the following questions. (a) Find the coefficient of determination, and interpret the result. (b) Find the standard error of the estimate, se, and interpret the result. Goals 212 210 219 223 259 258 273 200 217...
I want all parts answers, and the answer needs to correct.
the answers need include from part a) to part n)
h.) E(X) (Give decimal answer to two places past the decimal.) Tries 0/5 1.) E(Y) (Give decimal answer to two places past the decimal.) ries 0/5 j.) E(XY) (Give decimal answer to two places past the decimal.) Tries 0/5 k.) Cov(X,Y) (Give decimal answer to THREE places past the decimal.) Tries 0/5 1.) Standard deviation of X (Give decimal...
various occupational groups differ in their diets? A British study of this question compared 90 drivers and 70 conductors of London double-decker buses. The condutors' jobs require more physical ivity. The article reporting the study gives the data as "Mean daily consumption ± (se)." Some of the study results appear below Drivers Conductors Total calories 2826 ± 15 2841 ± 18 Alcohol (grams) 0.24 t 0.08 0,38 0.14 (a) Give x and s for each of the four sets of...
The table shows the number of goals allowed and the total points earned (2 points for a win, and 1 point for an overtime or shootout loss) by 14 ice hockey teams over the course of a season. The equation of the regression line is y = -0.582x + 222.271. Use the data to answer the following questions (a) Find the coefficient of determination, and interpret the result (b) Find the standard error of the estimate, se, and interpret the...
Most questions answered within 3 hours.
-
Important Information to answer the question:
Scale Solar Power Energy
The average price of a 4KW...
asked 48 minutes ago -
Lowell Corp. sells $100,000 of bonds to private investors. The
bonds are due in five years,...
asked 2 hours ago -
3) Do you believe that Disney’s
acquisition-based growth strategy is sustainable?
4) Which competencies support this...
asked 2 hours ago -
Rank the following three stocks by their total risk level highest
to lowest night writer has...
asked 2 hours ago -
A local
electronic company primarily manufactures four highly technical
telecommunication products. Each product must be processed...
asked 3 hours ago -
•Describe the basic structure of collagen monomers •Explain how
amino acid composition of collagen contributes to...
asked 5 hours ago -
Compute the sample correlation coefficient
r for each of the following data sets.
(Use 3 decimal...
asked 6 hours ago -
5a. What are the advantages and disadvantages of Proxy ARP?
b. What is the TTL field...
asked 6 hours ago -
An ice cube (density = 900[kg/m3]) with a side length of
2.54[cm] is held by a...
asked 7 hours ago -
would you say that leaders in the international context are born
or made? That is, can...
asked 7 hours ago -
Instructions
Read the Digital Trends article "Solid state drives are speedier
than hard disk drives. Are...
asked 8 hours ago -
A multiple-choice test consists of 29 questions with possible
answers of a, b, c, d. Estimate...
asked 8 hours ago