Number of years of experience | Number of new policies written annually 2 | 17 5 | 22 7 | 34 6 | 37 12 | 50 9 | 41 5 | 13 20 | 48 13 | 39 4 | 20 10 | 35 20 | 63 For the above data: 2.1 Determine the dependent and the independent variable (2) 2.2 Using appropriate computational formulae find the least-square regression line. (6) 2.3 Interpret the y- intercepts of regression equation in question 2.2 above (4) 2.4 Calculate the Pearson's correlation coefficient for the above data (10) 2.5 interpret the correlation coefficient calculate in question 2.4 above (3) 2.6 Predict the number of policies written annually by an agent with 3 years of experience. (5)
Added by Karen F.
Close
Step 1
1 The independent variable is the number of years of experience and the dependent variable is the number of new policies written annually. This is because the number of new policies written annually can be influenced by the number of years of experience. 2.2 Show more…
Show all steps
Your feedback will help us improve your experience
Breanna Ollech and 75 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Compute the coefficient of correlation between X and Y and hence obtain the equations of the regression lines from the following data: X: 22 26 29 30 31 31 34 35 Y: 20 20 21 29 27 24 27 31
Ameer S.
Calculate Karl Pearson's Coefficient of correlation from the following data. 18 19 20 21 23 24 25 26 28 25 26 27 18 16 18 19 25 23 The number of calls from motorists per day for roadside service was recorded for the month of December 2016. The results were as follows: 28 70 100 122 40 75 217 145 104 130 187 97 120 113 75 86 90 123 120 194 109 140 170 120 100 82 Set up a frequency table of 6 classes for this set of data values
Chai S.
Write an equation of the regression line for the data in each table. Then find the correlation coefficient. 5. MUSIC The table gives the number of annual violin auditions held by a youth symphony each year since 2004. Let x be the number of years since 2004. Year 2004 2005 2006 2007 2008 2009 2010 Auditions 22 19 25 37 32 35 42
James K.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD