Question: Can someone help me draw a scatterplot in R and show me what it looks like? Thank you so much Question: After interpreting the intercept
Can someone help me draw a scatterplot in R and show me what it looks like? Thank you so much Question: After interpreting the intercept of the regression equation you get in Question 8 or 9 and Interpreting the slope of the regression equation you get in Question 8 or 9, draw a scatter plot of foot length and handspan length and add a regression line using R.
(Hint: use "lm" and "abline" function. Youtube: https://youtu.be/i-1rJ_A0jEQ)
Note: "Homework8_foot.csv" data consists of nine classmates' foot length, handspan length, and head circumferences in inches collected by Jason. The first column (Foot) is foot length in inches. The second and third columns are handspan length and head circumference in inches, respectively. You can read the data and each column using the R code below. Make sure that the data should be saved in the folder of working directory.
dat = read.csv("Homework8_foot.csv")
foot <- dat$Foot
handspan <- dat$Handspan
head <- dat$Head
ScenarioA
Jason plans to buy a sneaker for Ella as a surprise gift. He needs to know Ella's foot length in inches. In Biology class, he learned that there is some linear relationship between foot length and hand span length (inch). He trys to predict Ella's foot length in inches from handspan length with a statistical model, simple linear regression. Answer the following questions using the dataset "Homework 8_foot.csv".
here is "Homework8_foot.csv" data:
| Foot | Handspan | Head |
| 10 | 7 | 21.26 |
| 11 | 6 | 21.65 |
| 12 | 8 | 22.05 |
| 8 | 5 | 22.44 |
| 12 | 7 | 22.83 |
| 10 | 9 | 23.62 |
| 9 | 7 | 24.02 |
| 10 | 7 | 24.41 |
| 13 | 9 | 24.8 |
Here are the regression equations:
Question 8 and 9:
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