Question: Suppose you have done a regression analysis on 50 data points in an attempt to find a linear connection between number of classes absent (x)

Suppose you have done a regression analysis on 50 data points in an attempt to find a linear connection between number of classes absent (x) and final exam score (y) for statistics students at State U. The correlation coefficient turned out to be .60.
a. Discuss what the correlation coefficient shows here.
b. If total variation in the 50 exam scores was 15,500, what must the explained variation have been?
c. Using your answer to part b, compute the unexplained variation and use it to produce the standard error of estimate, syx.

Step by Step Solution

★★★★★

3.40 Rating (184 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The correlation coefficient suggests that an increase in class absences can be associated with ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

486-M-S-L-R (3041).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

What laws have been passed in an attempt to legislate ethics?

Suppose that in an attempt to save time, we splay on every second tree operation. Does the amortized cost remain logarithmic?

In an attempt to prepare propylbenzene, a chemist alkylated benzene with 1-chloropropane and aluminum chloride. However, two isomeric hydrocarbons were obtained in a ratio of 2:1, the desired...

1. True or False. Justify for full credit. (a) A is an event, and Ac is the complement of A, then P(A AND Ac) = 0. (b) If the variance of a data set is 0, then all the observations in this data set...

0 Question 23 B 0/1 pt '0 3 8 99 (9 Details 14% of all college students volunteer their time. Is the percentage of college students who are volunteers larger for students receiving financial aid? Of...

I need help with the following question. Thank You 9:44 - M Q 5GE all 48%% MAT-240-X5051 Applied Statistics 20EW5 Chee ting Yap & | 06/20/20 9:44 PM Homework: 6-2 MyStatLab: Module Six Problem Set...

Prescott College General Biology Grades EXAM 1 EXAM 2 73 93 89 96 73 53 69 47 87 79 69 70 93 79 70 93 78 81 88 78 82 86 78 76 96 EXAM 3 80 88 91 98 66 46 74 56 79 70 70 65 95 80 73 89 75 90 92 83 86...

Needing help with Statistics Homework!!! Unit 8 - Section 4.2 1. If the linear correlation between Choose the correct answer below. O A. Positive O B. Negative O C. More information is needed An...

STAT 200: Introduction to Statistics Final Examination, Fall 2016 OL3 Page 1 of 8 STAT 200 OL3 Sections Final Exam Fall 2016 The final exam will be posted at 12:01 am on November 25, and it is due at...

An RRSP is now worth $223,000 after contributions of $2500 at the beginning of every six months for 16 years. What effective rate of return has the plan earned?

Helen was a very forgetful person, so she had placed her bank code (PIN number) on the back of her debit card. A thief stole Helens card and was able to take $100 from an ATM on the day of the theft....

2. LO 3 Suppose there is a credit market imperfection due to limited commitment. As in the setup with collateralizable wealth we examined in this chapter, each consumer has a component of wealth that...

What is a patent?

The results of Computerworld's Annual Job Satisfaction Survey showed that 28% of information systems (IS) managers are very satisfied with their job, 46% are somewhat satisfied, 12% are neither...

Barna Research Group collected data showing church attendance by age group (USA Today, November 20, 2003). Use the sample data to determine whether attending church is independent of age. Use a .05...

The following data were collected on the number of emergency ambulance calls for an urban county and a rural county in Virginia. Conduct a test for independence using = .05. What is your conclusion?...

Company A has 6,000 shares. The initial price was $3.50 /share and the current price is 3.75/ share. Company B initially had 900 shares at $10 /share and currently has 1,800 shares at $5.50 /share....

Marcel Co. is growing quickly. Dividends are expected to grow at a 26 percent rate for the next 3 years, with the growth rate falling off to a constant 7 percent thereafter. Required: If the required...

An investor has been offered a choice of two loans for the purchase of a building. The investor has agreed a purchase price of $7,500,000 and intends to hold the building for five years. The investor...