Q2 Regression- What is the predicted cholesterol level?
Given the data presented in Discussion Question 1 for this week, determine the cholesterol level of someone who drank two and a half cups of coffee a day. To get the answer, plot a regression line in StatCrunch and post your answers from StatCrunch for the following:
a) What is the intercept? (or –what would be your cholesterol level while ingesting no caffeine?)
The intercept is 665.71429
b) What is the slope? (or, what is what we call b in the linear regression equation?)
The slope is -0.69892857
c) What is the cholesterol level of someone who drank two and a half cups of coffee a day (given that 1 cup of coffee equals 100 mg of caffeine)?
The cholesterol level of someone who drank two and a half cups of coffee a day would be 490.98 mg/dL.
Simple linear regression results:
Dependent Variable: Cholesterol level (mg/dL)
Independent Variable: caffeine (mg)
Cholesterol level (mg/dL) = 665.71429 - 0.69892857 caffeine (mg)
Sample size: 7
R (correlation coefficient) = -0.72796194
R-sq = 0.52992859
Estimate of error standard deviation: 155.77582
Parameter estimates:
Parameter |
Estimate |
Std. Err. |
Alternative |
DF |
T-Stat |
P-value |
Intercept |
665.71429 |
131.6546 |
≠ 0 |
5 |
5.0565213 |
0.0039 |
Slope |
-0.69892857 |
0.29438863 |
≠ 0 |
5 |
-2.3741697 |
0.0636 |
Analysis of variance table for regression model:
Source |
DF |
SS |
MS |
F-stat |
P-value |
Model |
1 |
136780.32 |
136780.32 |
5.6366817 |
0.0636 |
Error |
5 |
121330.54 |
24266.107 |
||
Total |
6 |
258110.86 |
Predicted values:
X value |
Pred. Y |
s.e.(Pred. y) |
95% C.I. for mean |
95% P.I. for new |
250 |
490.98214 |
73.597159 |
(301.79463, 680.16965) |
(48.105541, 933.85874) |
hihi
Earn back money you have spent on downloaded sample
To export a reference to this article please select a referencing stye below.
Assignment Hippo (2021) . Retrive from http://assignmenthippo.com/sample-assignment/what-is-the-predicted-cholesterol-level
"." Assignment Hippo ,2021, http://assignmenthippo.com/sample-assignment/what-is-the-predicted-cholesterol-level
Assignment Hippo (2021) . Available from: http://assignmenthippo.com/sample-assignment/what-is-the-predicted-cholesterol-level
[Accessed 24/10/2021].
Assignment Hippo . ''(Assignment Hippo,2021) http://assignmenthippo.com/sample-assignment/what-is-the-predicted-cholesterol-level accessed 24/10/2021.
Our motto is deliver assignment on Time. Our Expert writers deliver quality assignments to the students.
Get reliable and unique assignments by using our 100% plagiarism-free.
Get connected 24*7 with our Live Chat support executives to receive instant solutions for your assignment.
Get Help with all the subjects like: Programming, Accounting, Finance, Engineering, Law and Marketing.
Get premium service at a pocket-friendly rate at AssignmentHippo
I was struggling so hard to complete my marketing assignment on brand development when I decided to finally reach to the experts of this portal. They certainly deliver perfect consistency and the desired format. The content prepared by the experts of this platform was simply amazing. I definitely owe my grades to them.
Get instant assignment help