




Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Quis Regression Statistic berserta jawaban
Typology: Quizzes
1 / 8
This page cannot be seen from the preview
Don't miss anything!
Kurnia Ramadhan
The Quiz Materials are : a. Scatterplots and regression b. Correlation coefficient and the residual c. Coefficient of determination and RMSE (root mean square error) d. Chi-square tests
There appears to be a strong, positive, linear relationship between sea surface temperatures and time. There appears to be a strong, negative, linear relationship between sea surface temperatures and time. There appears to be a weak, positive, linear relationship between sea surface temperatures and time. There appears to be a weak, negative, linear relationship between sea surface temperatures and time.
∑xy = 522
Figure 1 Figure 2
Figure 3 Figure 4
An R-value close to 1 or −1 means the line of best fit is perfect at making predictions from your data, you do not need any other checks. Always draw a scatterplot of your data points first before you perform a linear regression to get an idea of the shape of the data. When you check the residual plot, it needs to be in a random pattern with points above and below 0 in order for the line of best fit to be a good predictor of the data. The value of a data point is always equal to the value from the linear model, plus the residual value.
... the model is probably a good fit. ... the model is probably a bad fit. ... the r2 value will decrease.
The university can’t use a chi-square test because their sample doesn’t meet the independence condition
Ordering an appetizer doesn’t affect the dessert order Ordering an appetizer affects the dessert order The restaurant can’t use a chi-square test because their sample doesn’t meet the large counts condition The restaurant can’t use a chi-square test because their sample doesn’t meet the independence condition
Sick days taken is not affected by quarter Sick days taken is affected by quarter The company can’t use a chi-square test because their sample doesn’t meet the large counts condition The company can’t use a chi-square test because their sample doesn’t meet the independence condition
This form was created inside of Universitas Teknokrat Indonesia.
Forms