Question: Given the following data for a math class at this university: Class semester test average = 80 corresponding standard deviation = 6 Class final exam

Given the following data for a math class at this university: Class semester test average = 80corresponding standard deviation = 6Class final exam average = 70corresponding standard deviation = 8Correlation coefficient = 0.6

(a) Use this data to write the equation of the regression line in the form y = mx +b where x = semester test grade and y = final exam grade.

(b) Then use the computed regression line equation for this data to predict the final exam test score for a student who had a semester test grade of 80.

Step by Step Solution

★★★★★

3.39 Rating (155 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

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 (2 attachments)

63609d96c6359_234625.pdf

180 KBs PDF File

63609d96c6359_234625.docx

120 KBs Word File

Students Have Also Explored These Related Mathematics Questions!

Given the following data for Alberts fabricating production area: Fixed costs for one shift .......= $60,000 Unit variable cost ............= $7 Selling price ....................= $12 Number of...

Data file XR16058 lists the following data for a sample of automatic teller machine (ATM) customers: time (seconds) to complete their transaction, estimated age, and gender (1 = male, 0 = female). a....

Given the following data for a particular inventory item: 1. What is the economic order quantity for this item? A. 2,000 units B. 1940 Units C. 1950 Units D. 2050 Units 2. The linear optimization...

Padre works for a trade magazine that publishes. lists of Power-Sizing Exponents (PSE) that reflect economies of scale for developing engineering estimates of various types of equipment. Padre has...

Two different routes, which entail driving across a mountainous section, are being considered for a highway construction project. The first route (the high road) will require building several bridges...

Consider a three-phase synchronous motor for which you are given the following data: Rated line-to-line voltage (V), Rated volt-amperes (VA), Rated frequency (Hz) and speed (r/min), Synchronous...

Possible causes for price and efficiency variances You are a student preparing for a job interview with a Fortune 109 consumer products manufacturer. You are applying for a job in the Finance...

Cost allocation to divisions. Rembrandt Hotel & Casino is situated on beautiful Lake Tahoe in Nevada. The complex includes a 300-room hotel, a casino, and a restaurant. As Rembrandts new controller,...

A structural member 100 mm (4 in.) long must be able to support a load of 50,000 N (11,250 lbf) without experiencing any plastic deformation. Given the following data for brass, steel, aluminum, and...

Suppose you are given the following data: Risk-free interest rate is 6% The stock price follows: dSt = St + StdWt Volatility is 12 % a year The stock pays no dividends anti the current stock price...

4. Describe the effect that a rise in government spending would have on the a. Short - run Phillip's curve b. Long-run Phillip's curve C. Provide economic reasoning for your

accounting 2 unit 6 quiz Ames Corporation's net accounts receivable were $750,000 on December 31, 20X1, and $1,250,000 on December 31, 20X2. Net cash sales for 20X2 were $3,300,000. The accounts...

Patients are given a 10-point Likert scale form to fill out after meeting with their doctor. Ayanda has calculated a 92% confidence interval to estimate the true mean satisfaction rating from...

Vignana Corporation manufactures and sells hand-painted clay figurines of popular sports heroes. Shown below are some of the costs incurred by Vignana for last year: Cost of clay used in production $...

Jennifer Prescott, age 47, has developed chest pain and difficulty breathing Jennifer has had several episodes of coughing up thick blood-tinged sputum A diagnostic bronchoscopy is performed and a...

Which option best describes traits of adaptive/agile development approaches? A) Iterative and incremental development approaches, constant feedback loops, changes are expected B) Planning,...

B. Treasury Notes and Bonds II Use the following Treasury quote for questions B1 through B4. Maturity Coupon rate Bid price Asked price (%) 11/15/2039 4.375 133.7260 133.2960 Asked yield (%) 2.258 1....

Which of the companies has the lowest accounts receivable turnover in the year 20X2? a. Company A. b. Company B. c. Company C. d. CompanyD. 20X1 20X2 Credit Sales Average Receivables Balance $1.0...

Tri-State Bank is investigating the processing time for loan applications. Samples were taken for 25 random days from 4 branches. These data can be found in the worksheet C16P5 in the OM5 Data...

Recycle Technologies manufacturers and sells recycled antifreeze that is 20 percent cheaper and has a carbon footprint about 80 percent smaller than new antifreeze made from original raw materials....

A telephone call center uses three customer service representatives (CSRs) during the 8:30 a.m. to 9:00 a.m. time period. The standard service rate is 2.0 minutes per telephone call per CSR. Assuming...

Data on sales revenue Y, television advertising expenditures X1, and print media advertising expenditures X2 for a large retailer for the period 1988-1993 were given in Problem 11 of Chapter 8. Use...

This problem refers to the 1990 Census data presented in Problem 19 of Chapter 5 and in Problem 14 of Chapter 8. Use the computer output from Problem 14 of Chapter 8, along with the additional output...

Use the computer output for the radial keratotomy data of Problem 12 in Chapter 8, along with the additional output here, to answer the following questions. a. Perform the overall F test for the...