Question

We want to explore a possible connection between the variables x and /, where x =...

We want to explore a possible connection between the variables x and /, where x = number of days and words spoken and y = price of MB. a) So far we have the followirtg, f = 12.77x+ b, f = 38.5, Y = 1925, find b. b) Consider the regression equation of y on x given by: y = 116.9 x + 115.725 along with I* = 24.6, x = 2,46, s" = 3.77 and n = 10. Construct. a95% Prediction hrterval for the true value of y if xo = 4. c) Interpret your interval. d) Is the true value of y (for xo = 4) in this PI? Why or why not? Explain

Homework Answers

Answer #1

PLEASE - - - - PLEASE KINDLY UP-VOTE. IT HELPS ME A LOT. THANK YOU IN ADVANCE.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The production department of Celltronics International wants to explore the relationship between the number of employees...
The production department of Celltronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced. As an experiment, two employees were assigned to assemble the parts. They produced 15 during a one-hour period. Then, four employees assembled them. They produced 25 during a one-hour period. The complete set of paired observations follows: Number of Assemblers One-Hour Production (units) 2 15 4 25 1 10 5 40 3 30 Required: a. Determine...
A medical statistician wanted to examine the relationship between the amount of sunshine (x) in hours,...
A medical statistician wanted to examine the relationship between the amount of sunshine (x) in hours, and incidence of skin cancer (y). As an experiment he found thenumber of skin cancers detected per 100,000 of population and the average daily sunshine in eight counties around the country. these data are shown... Average dealy sunshine 5 7 6 7 8 6 4 3 Skin Cancer per 100,000 7 11 9 12 15 10 7 5 a) determine the least squares regression...
In a small-scale regression study, we collected data on the number of children in a family...
In a small-scale regression study, we collected data on the number of children in a family Xi and the number of hours per week spent shopping Yi. The following data were obtained: i 1 2 3 4 5 6 Xi 2 6 3 1 1 9 Yi 13 17 12 12 9 22 Assume we performed a simple linear regression of Yi on Xi, i.e. E(Yi) = ?0 + ?1Xi (a) By hand compute X?X, X?Y, (X?X)-1, b, Y^(means Y-hat),...
Given are five observations for two variables, x and y . xi 1 2 3 4...
Given are five observations for two variables, x and y . xi 1 2 3 4 5 yi 53 58 47 21 11 Use the estimated regression equation is y-hat = 78.01 - 3.08x A.) Compute the mean square error using equation. s^2 = MSE = SSE / n -2 [     ]   (to 2 decimals) B.) Compute the standard error of the estimate using equation s = sqrtMSE = sqrt SSE / n - 2 [      ] (to 2 decimals)...
1. For a pair of sample x- and y-values, what is the difference between the observed...
1. For a pair of sample x- and y-values, what is the difference between the observed value of y and the predicted value of y? a) An outlier b) The explanatory variable c) A residual d) The response variable 2. Which of the following statements is false: a) The correlation coefficient is unitless. b) A correlation coefficient of 0.62 suggests a stronger correlation than a correlation coefficient of -0.82. c) The correlation coefficient, r, is always between -1 and 1....
A sociologist is interested in the relation between x = number of job changes and y...
A sociologist is interested in the relation between x = number of job changes and y = annual salary (in thousands of dollars) for people living in the Nashville area. A random sample of 10 people employed in Nashville provided the following information. x (number of job changes) 4 7 5 6 1 5 9 10 10 3 y (Salary in $1000) 34 33 32 32 32 38 43 37 40 33 In this setting we have Σx = 60,...