Compute the correct linear regression line. Once obtained, assume that one of the eruptions of Old...
Compute the correct linear regression line. Once obtained, assume that one of the eruptions of Old Faithful lasted 5.0 minutes (i.e., X = 5); strive to predict the approximate waiting time using your linear regression equation. The necessary data is placed below for your reference.
X= duration of the current eruption in minutes (to nearest 0.1 minute)
Y = waiting time until the next eruption in minutes (to nearest minute)
DATA RECORDED IN AUGUST 1-8 1978
Y X
78 4.4
74 3.9
68 4.0
76 4.0
80 3.5
84 4.1
50 2.3
93 4.7
55 1.7
76 4.9
58 1.7
74 4.6
75 3.4
Homework Answers
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Compute the correct linear regression line. Once obtained,
assume that one of the eruptions of Old...
Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values....
Q2. Consider all observations as one sample of X (1st column) and Y (2nd column) values. Answer the following questions: (20 points) 78 4.4 74 3.9 68 4 76 4 80 3.5 84 4.1 50 2.3 93 4.7 55 1.7 76 4.9 58 1.7 74 4.6 75 3.4 80 4.3 56 1.7 80 3.9 69 3.7 57 3.1 90 4 42 1.8 91 4.1 51 1.8 a) Calculate the correlation coefficient r (5 points) b) Fit the regression model (predicting...
Please solve In their discussion of the Lindley distribution, Ghitany et al. (2008) considered the data...
Please solve
In their discussion of the Lindley distribution, Ghitany et al. (2008) considered the data given in Table 1 and available on Blackboard as the Robject waitingtimes.dat. It summarises the waiting time, in minutes, of 100 bank customers before they were served. 0.8 2.9 4.3 5.0 6.7 8.2 9.7 11.9 14.1 19.9 0.8 3.1 4.3 5.3 6.9 8.6 9.8 12.4 15.4 20.6 1.3 3.2 4.4 5.5 7.1 8.6 10.7 12.5 15.4 21.3 1.5 3.3 4.4 5.7 7.1 8.6 10.9...
Please use excel to solve. Any help would be greatly appreciated. A B E F G...
Please use excel to solve. Any
help would be greatly appreciated.
A B E F G 1 C D Changes in Consumer Price Index, 1960-2006 (Percent) 2 Year-Year Percent Change in Commodities CPI Year-Year Percent Change in Services CPI 3 4 5 6 7 8 Commodities% 0.9 Services% 3.4 0.6 1.7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37...
We consider a multiple linear regression model with LIFE (y) as the response variable, and MALE (...
We consider a multiple linear regression model with LIFE (y) as
the response variable, and MALE (x1), BIRTH (x2), DIVO (x3), BEDS
(x4), EDUC (x5), and INCO (x6), as predictors.
"STATE" "MALE" "BIRTH" "DIVO" "BEDS" "EDUC" "INCO" "LIFE"
AK 119.1 24.8 5.6 603.3 14.1 4638 69.31
AL 93.3 19.4 4.4 840.9 7.8 2892 69.05
AR 94.1 18.5 4.8 569.6 6.7 2791 70.66
AZ 96.8 21.2 7.2 536.0 12.6 3614 70.55
CA 96.8 18.2 5.7 649.5 13.4 4423 71.71
CO 97.5...
11.38 Building a multiple linear regression model. Let’s now build a model to predict the life-satisfaction...
11.38 Building a multiple linear regression model. Let’s now build a model to predict the life-satisfaction score, LSI. (a) Consider a simple linear regression using GINI as the explanatory variable. Run the regression and summarize the results. Be sure to check assumptions. (b) Now consider a model using GINI and LIFE. Run the multiple regression and summarize the results. Again be sure to check assumptions. (c) Now consider a model using GINI, LIFE, and DEMOCRACY. Run the multiple regression and...
We consider the multiple linear regression with LIFE (y) as the response variable, and MALE, BIRT...
We consider the multiple linear regression with LIFE (y) as the response variable, and MALE, BIRTH, DIVO , BEDS, EDUC, and INCO, as predictors. QUESTION: Plot the standardized residuals against the fitted values. Are there any notable points. In particular look for points with large residuals or that may be influential. # please screenshot the Rcode for the plot. # data information are as follows: "STATE" "MALE" "BIRTH" "DIVO" "BEDS" "EDUC" "INCO" "LIFE" AK 119.1 24.8 5.6 603.3 14.1 4638...
QUESTION 7 The data set Beer Large, which can be found in StatCrunch Shared Data Sets,...
QUESTION 7 The data set Beer Large, which can be found in StatCrunch Shared Data Sets, gives the Alcohol, Carbohydrates and Calories for different brands of beer. The explanatory variable is x + Carbohydrates and the response variable is Y - Calories. Use this information to answer: Calculate the correlation between carbohydrates and calories. (4 decimal places) Row vars varo var var 8 var9 var 10 2 الميا ABV 4.1 5.4 4.43 4.13 5.9 4.9 Carbs 2.6 13.7 5.8 5...
How do I make a line of best fit (regression) with the following data? I am...
How do I make a line of best fit (regression) with the
following data? I am aware of how to make it in Microsoft Excel,
but I am having trouble figuring out how to find my x value for
making the graph. Y value is absorbance, what do I use for x value
to calculate the slope?
Tube 0.5 mM sulfide standard (ml) Sulfide amount (umol) Sulfide reagent (ml) 0.0 4.9 0.11 0.00 0.2 FeCl3 dH2O to Absorbance 10ml total...
Use the following tide table to answer the questions in the Assessing Your Learning section of...
Use the following tide table to answer the questions in the
Assessing Your Learning section of this lab. This tide table shows
the predicted ocean heights for Santa Cruz/Monterey Bay, California
during December 2011.
1. A visit to Santa Cruz/Monterey Bay, California is planned
during the week of December 4-10 to view the tide pools. To observe
intertidal animals during the daytime at the lowest possible tide,
the best time to visit the beach is on _________________ at
_________________. (4...
2. Consider a mass m moving in R3 without friction. It is fasten tightly at one...
2. Consider a mass m moving in R3 without friction. It is fasten tightly at one end of a string with length 1 and can swing in any direction. In fact, it moves on a sphere, a subspace of R3 1 0 φ g 2.1 Use the spherical coordinates (1,0,) to derive the Lagrangian L(0,0,0,0) = T-U, namely the difference of kinetic energy T and potential energy U. (Note r = 1 is fixed.) 2.2 Calculate the Euler-Lagrange equations, namely...
Please solve
In their discussion of the Lindley distribution, Ghitany et al. (2008) considered the data given in Table 1 and available on Blackboard as the Robject waitingtimes.dat. It summarises the waiting time, in minutes, of 100 bank customers before they were served. 0.8 2.9 4.3 5.0 6.7 8.2 9.7 11.9 14.1 19.9 0.8 3.1 4.3 5.3 6.9 8.6 9.8 12.4 15.4 20.6 1.3 3.2 4.4 5.5 7.1 8.6 10.7 12.5 15.4 21.3 1.5 3.3 4.4 5.7 7.1 8.6 10.9...
Please use excel to solve. Any
help would be greatly appreciated.
A B E F G 1 C D Changes in Consumer Price Index, 1960-2006 (Percent) 2 Year-Year Percent Change in Commodities CPI Year-Year Percent Change in Services CPI 3 4 5 6 7 8 Commodities% 0.9 Services% 3.4 0.6 1.7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37...
We consider a multiple linear regression model with LIFE (y) as
the response variable, and MALE (x1), BIRTH (x2), DIVO (x3), BEDS
(x4), EDUC (x5), and INCO (x6), as predictors.
"STATE" "MALE" "BIRTH" "DIVO" "BEDS" "EDUC" "INCO" "LIFE"
AK 119.1 24.8 5.6 603.3 14.1 4638 69.31
AL 93.3 19.4 4.4 840.9 7.8 2892 69.05
AR 94.1 18.5 4.8 569.6 6.7 2791 70.66
AZ 96.8 21.2 7.2 536.0 12.6 3614 70.55
CA 96.8 18.2 5.7 649.5 13.4 4423 71.71
CO 97.5...
QUESTION 7 The data set Beer Large, which can be found in StatCrunch Shared Data Sets, gives the Alcohol, Carbohydrates and Calories for different brands of beer. The explanatory variable is x + Carbohydrates and the response variable is Y - Calories. Use this information to answer: Calculate the correlation between carbohydrates and calories. (4 decimal places) Row vars varo var var 8 var9 var 10 2 الميا ABV 4.1 5.4 4.43 4.13 5.9 4.9 Carbs 2.6 13.7 5.8 5...
How do I make a line of best fit (regression) with the
following data? I am aware of how to make it in Microsoft Excel,
but I am having trouble figuring out how to find my x value for
making the graph. Y value is absorbance, what do I use for x value
to calculate the slope?
Tube 0.5 mM sulfide standard (ml) Sulfide amount (umol) Sulfide reagent (ml) 0.0 4.9 0.11 0.00 0.2 FeCl3 dH2O to Absorbance 10ml total...
Use the following tide table to answer the questions in the
Assessing Your Learning section of this lab. This tide table shows
the predicted ocean heights for Santa Cruz/Monterey Bay, California
during December 2011.
1. A visit to Santa Cruz/Monterey Bay, California is planned
during the week of December 4-10 to view the tide pools. To observe
intertidal animals during the daytime at the lowest possible tide,
the best time to visit the beach is on _________________ at
_________________. (4...
2. Consider a mass m moving in R3 without friction. It is fasten tightly at one end of a string with length 1 and can swing in any direction. In fact, it moves on a sphere, a subspace of R3 1 0 φ g 2.1 Use the spherical coordinates (1,0,) to derive the Lagrangian L(0,0,0,0) = T-U, namely the difference of kinetic energy T and potential energy U. (Note r = 1 is fixed.) 2.2 Calculate the Euler-Lagrange equations, namely...
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