Question
In: Statistics and Probability
Suppose you want to model the linear relationship between calories and total fat in 8 randomly...
- Suppose you want to model the linear relationship between calories and total fat in 8 randomly selected McDonalds breakfast items. The following table lists the item, that item’s number of calories and the total fat:
|
Item |
McMuffin |
Bacon Egg & Cheese Bagel |
Big Breakfast |
Cinnamon Melts |
Egg White Delight |
Fruit & Oatmeal |
Sausage Biscuit |
Steak & Egg McMuffin |
|
Calories (x) |
300 |
620 |
640 |
460 |
250 |
290 |
430 |
430 |
|
Total Fat (y) |
13 |
31 |
37 |
19 |
8 |
4 |
27 |
23 |
- (4 points) Find the slope for the Least-Squares regression equation for predicting the total fat of a McDonalds breakfast item based on its calories.
- (4 points) Find the y-intercept for the Least-Squares regression equation for predicting the total fat of a McDonalds breakfast item based on its calories.
- (2 points) What is the Least-Squares regression equation using answers (a) and (b)?
- (5 points) Calculate and interpret the coefficient of determination for these data.
Solutions
Expert Solution
------------------------------------
DEAR STUDENT,
IF YOU HAVE ANY QUERY ASK ME IN THE COMMENT BOX,I AM HERE TO HELPS YOU.PLEASE GIVE ME POSITIVE RATINGS
*****************THANK YOU***************
orchestra answered 2 years agoRelated Solutions
Number 1 Say that you want to use simple linear regression to model the relationship between...
Number 1 Say that you want to use simple linear
regression to model the relationship between the explanatory
variable x= the number of alcoholic drinks consumed per week, and
the response variable y= number of hours of exercise per week. You
collect data on n=52 people, and find the regression line
ŷ=10-0.3x.
(2 pts) What is the theoretical model underlying your
regression analysis?
(4 pts) Say that Lorenzo has six alcoholic drinks a week.
Predict how many hours he will...
You want to study the relationship between fat intake (g/day) and the death rate in the...
You want to study the relationship between fat intake (g/day)
and the death rate in the Central Valley. Your friend, from PH 109,
suggests that you conduct an ecological study first. You found the
data and summarized it below. What is the association between fat
intake (g/day) and death rate? Explain the ecological fallacy.
Please show your scatter plot. (3 points)
County
Fat Intake (g/day)
Age-adjusted death rate (per 100,000
population)
Fresno
140
2.1
Kings
120
1.9
Tulare
119
0.8...
You want to determine if there is a linear relationship between mental health and physical health....
You want to determine if there is a linear relationship between
mental health and physical health. You have several people assessed
by a psychologist and a medical doctor. The psychologist assess
mental health (ment) on a scale of 1-30 (higher numbers mean better
mental health) and the medical doctors rated their overall physical
health (phys) from 1-30 (higher numbers mean better health). You
obtain the data below. (note: there is more information than you
need)
Person
MENT
PHYS
+ -...
You want to study the relationship between fat intake (g/day) and death rate in the Central...
You want to study the relationship between fat intake (g/day)
and death rate in the Central Valley. Your friend, from PH 109,
suggests that you conduct an ecological study first. You found the
data and summarized it below. What is the association between fat
intake (g/day) and death rate? Explain the ecological fallacy.
Please show your scatter plot. (3 points)
County
Fat Intake (g/day)
Age-adjusted death rate (per 100,000
population)
Fresno
140
2.1
Kings
120
1.9
Tulare
119
0.8
Madera...
Calories Fat (g) Saturdated Fat (g) Trans Fat (g) Sodium (g) Total Carbs (g) Dietary Fiber...
Calories
Fat (g)
Saturdated Fat (g)
Trans Fat (g)
Sodium (g)
Total Carbs (g)
Dietary Fiber (g)
Sugars (g)
Protein (g)
Chick-fil-A Sauce
140
13
2
0
170
6
0
6
0
Garlic
& Herb Ranch Sauce
140
14
2.5
0
230
1
0
1
0
Honey
Mustard Sauce
45
0
0
0
150
11
0
10
0
Honey
Roasted BBQ Sauce
60
5
1
0
70
2
0
2
0
Polynesian Sauce
110
6
1
0
210
13
0...
A company want to find out if there is a linear relationship between indirect labor expense...
A company want to find out if there is a linear relationship
between indirect labor expense (ILE), in dollars, and direct labor
hours (DLH). Data for direct labor hours and indirect labor expense
for 25 months are given. Based on the data in the table below, is
there a significant linear relationship between Direct Labor Hours
and the Indirect Labor Expense?
A.
Yes, because the
p-value = 0.00023
B.
No, the sample
correlation coefficient is equal to 0.878, which provides...
A company want to find out if there is a linear relationship between indirect labor expense...
A company want to find out if there is a linear relationship
between indirect labor expense (ILE), in dollars, and direct labor
hours (DLH). Data for direct labor hours and indirect labor expense
for 25 months are given.
Please see attached Excel for data.
Approximately what percentage of the variation in indirect labor
expenses is explained by the regression model you derived?
Place your answer, rounded to 2 decimal places, in the blank. Do
not use any stray punctuation marks...
A paper suggests that the simple linear regression model is reasonable for describing the relationship between...
A paper suggests that the simple linear regression model is
reasonable for describing the relationship between y =
eggshell thickness (in micrometers, µm) and x = egg
length (mm) for quail eggs. Suppose that the population regression
line is y = 0.115 + 0.007x and that σe = 0.005.
Then, for a fixed x value, y has a normal
distribution with mean 0.115 + 0.007x and standard
deviation 0.005.
Approximately what proportion of quail eggs of length 14
mm have a shell...
What is the difference between a linear relationship and a curvilinear relationship in linear regression?
What is the difference between a linear relationship and a
curvilinear relationship in linear regression?
Explain the difference between a positive linear relationship, a negative linear relationship, and a nonlinear relationship...
Explain the difference between a positive linear relationship, a
negative linear relationship, and a nonlinear relationship and give
an example of each.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Young and Company claims that its pressurized diving bell will, on average, maintain its integrity to...
- 1) Alternative compiled code sequence using instructions in classes A, B, C. What is the average...
- An asset is purchased on January 1 for $48,700. It is expected to have a useful...
- Do we have any online or offline tool to convert c and cpp programs into MIPS...
- -what is the pH of HCl 0,1M and NaCl 0,1M mixed together solution? -What is the...
- function X=extractDWT(x_train,startS,endS,wStep,wRange) % x_train = input signal % startS = from second % endS = end...
- Do you agree that Social Loafing is similar to Theory X. Give an example to support...
ADVERTISEMENT