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ID: 2921413 • Letter: P
Question
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https://drive.google.com/file/d/0B18H6Y9CiR-wQXpNTkRoWUJqbGc
And Please help to answer all 9 questions blew in detailly by typed, please answer all of them. Thank you very much!
There should be 130 cases and 3 variables: bodytemp, zombie, and heartrate.
1. Do you think body temperature will predict heart rate? Why or why not? If you think there will be a relation, will it be positive or negative? Do you think zombie status will predict heart rate? Why or why not? If you think there will be a relation, will it be positive or negative? Compute a regression equation in which you predict heart rate from body temperature.
2. What is the value of the slope of the line (B1)? Is it statistically significant? What does this value tell you?
3. What is the value of the intercept (B0)? Is it statistically significant? What does this value tell you?
4. What is the predicted heart rate for someone with a body temperature of 98.6?
5. Are the results consistent with your predictions? Compute a regression equation in which you predict heart rate from zombie status.
6. What is the value of the slope of the line (B1)? Is it statistically significant? What does this value tell you?
7. What is the value of the intercept (B0)? Is it statistically significant? What does this value tell you?
8. What is the predicted heart rate for someone who is a zombie?
9. Are the results consistent with your predictions?
Explanation / Answer
Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) 1.061051 1.404216 0.756 0.4499
as.factor(Zombie)2 -0.001064 0.020843 -0.051 0.9593
Body.Temp 0.032978 0.014268 2.311 0.0208 *
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it's R output,
(1)yes, Body temp predict the heat rate as its p-value(0.0208) is significant. its have positive relation with body temp as it coefficient is positive.
NO, zombies do not predict the heart rate as is p-value(0.9593) is not significant.so there is no relation between heart rate and Zombies.
predicted line is: 1.061051+ 0.032978*Body.temp
(2) B1=0.03297 it's significant.its tell that if there is Body temp increase then there is a significantly increasing change in heart rate. B2=-0.001064 it's not significant.
(3)B0=1.061051,its not significant as its p-value is(0.4499).its take us whatever will be condition heart rate will be at least 1.061051.
(4)it's 4.3126~approximately 5
(5)yes,
regression line with zombies is,1.061051+( -0.001064)*Zombies
(6)B1=-0.001064, it's not statistically significant as its P-value is (0.9593), is tell us that there is no any impact of zombies or not on heart rate.
(7)
B0=1.061051,its not significant as its p-value is(0.4499).its take us whatever will be condition heart rate will be at least 1.061051.
(8)1.061051
(9)yes