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# Correlation and Regression Analysis

### Regression Equations for First Variable Independance

Find regression equation letting first variable be the independent (x) variable. Find the predicted values using the prediction procedure. Bear Chest sizes and Weights x Chest (in.) 26, 45, 54, 49, 41, 49, 44, 19 y Weight (lb) 90, 344, 416, 348, 262, 360, 332, 34 Find the best predicted weight of a bear with a chest size of

### Math Sample Solution: Regression Line Equation

Only for above listed OTA. Find equation of regession line. Please explain. x: 2,4,5,6,8 y: 3,1,0,-1, -3

### Linear Programming 4311-19,20

Subject: Linear Programming Details: The programs that can be used are Excel Slover, Data analyis, spreed sheets, linear Programming and PERT/CPM models. = 19. A company that makes garments is unionized. Each full time employee works 40 hours per week,earns \$13 per hour, and the union contract says that the number of full

### Binominal Distribution Occurrence

Details: 1 in 60,000 occurence for accident 1 in 35 occurence for accident accident happened on 25th try -compare probabilities of one accident in 25 times using binominal distribution

### Determine the least squares trend equation

The following table (file attached) gives the annual amount of scrap produced by Machine Products, Inc. Determine the least squares trend equation. Estimate the amount of scrap for the year 2003.

### Determine the standard error of estimate

The following regression equation was computed from a sample of 20 observations: Y'= 15 - 5X SSE was found to be 100 and SS total 400. a. Determine the standard error of estimate. b. Determine the coefficient of determination. c. Determine the coefficient of correlation. (Caution: Watch the sign!)

### Description of Scatter Diagram

Given the following data, create a scatter diagram (using Excel), click on the points as demonstrated in the Excel workbook, and have Excel place the regression equation and coefficient of correlation on the graph for you. Interpret the results (in English). Years of Education Annual Income (000's) 6

### repeated independent trials

If there are repeated independent trials and there are only two outcomes, what distribution should be used? a. binomial distribution b. multinomial distribution c. Poisson distribution d. hypergeometric distribution

### Word Problem: Coca Cola Share Prices

Listed below is the selling price for a share of Coca Cola, at the close of the year. Year Price Year Price Year Price 1990 12.9135 1994 18.3160 1998 40.6111 1991 16.8250 1995 27.7538 1999 35.0230 1992 20.6125 1996 29.0581 2000 49.5625 1993 20.3024 1997 36.0155 1. Plot the data.

### Model Transformation Multiple Regression

What method has been used to transform Model 1 to Model 2? Equations for Model 1 and Model 2 are as follows: Model 1 Ct = 26.19 + 0.6428GNPt - 0.4398Dt + et Model 2 Ct /GNPt = 25.92(1/GNPt)- 0.4598(Dt/GNPt)+ et C represents Consumption expenditures GNP represents Gross National Product D represents defense spen