Use the following to answer the questions below:
Students in a small statistics course wanted to investigate if forearm length (in cm) was useful for predicting foot length (in cm) . The data they collected are displayed in the provided scatterplot (with regression) , and the computer output from the analysis is provided.
Use three decimal places when reporting the results from any calculations, unless otherwise specified.
The regression equation is Foot (cm) = 9.22 + 0.574 Forearm (cm)
-What is the test statistic for a test of the slope? What is the p-value? What is the conclusion of the test, in context?
A) t = 3.63; p-value = 0.004
There is strong evidence that forearm length is a useful predictor of foot length.
B) t = 2.04; p-value = 0.066
There is not enough evidence to conclude that forearm length is a useful predictor of foot length.
C) t = 3.63; p-value = 0.004
There is not enough evidence to conclude that forearm length is a useful predictor of foot length.
D) t = 2.04; p-value = 0.066
There is strong evidence that forearm length is a useful predictor of foot length.
Correct Answer:
Verified
Q23: Use the following to answer the questions
Q24: Use the following to answer the questions
Q25: Use the following to answer the questions
Q26: Use the following to answer the questions
Q27: Use the following to answer the questions
Q29: Use the following to answer the questions
Q30: Use the following to answer the questions
Q31: Use the following to answer the questions
Q32: Use the following to answer the questions
Q33: Use the following to answer the questions
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents