Find sse s2 and s for the least squares lines

Reference no: EM131007965

1. Learning the mechanics. Suppose you ?t a least squares line to nine data points and calculate SSE = .219.

(a) Find s2, the estimator of the variance σ 2 of the random error term ε.

(b) Calculate s.

2. Learning the mechanics. Find SSE, s2, and s for the least squares lines in the following exercises. Interpret the value of s.

3. Quantitative models of music. Refer to the Chance (Fall 2004) study on modeling a certain pitch of a musical composition. Recall that the number of times (y) a certain pitch occurs- called entropy- was modeled as a straight-line function of year of birth (x) of the composer. Based on the scatterplot of the data, the standard deviation σ of the model is estimated to be s = .1. For a given year (x), about 95% of the actual entropy values (y) will fall within d units of their predicted values. Find the value of d.

Reference no: EM131007965

Questions Cloud

How wages are determined in labor markets : Which of the following are microeconomic problems? Instructions: You may select more than one answer. Click the box with a check mark for correct answers and click to empty the box for the wrong answers. Slow growth. The pricing policies of firms. Un..

Charge of making recommendations based on economic forecasts : You are in charge of making recommendations based on economic forecasts to upper management of your firm, which produces widgets and employs 2,500 workers. Upper management has informed you that they are planning to build a new facility and hire 500 ..

Half-dozen companies hoping to get a job : You are a senior in college. You sent your resume to a half-dozen companies hoping to get a job. A month ago you interviewed at ABC Corporation and XYZ Corporation. Two weeks ago XYZ Corporation offered you a job.

Low wage country will give the company a cost advantage : PC-World is a U.S. manufacturer of personal computers. The CEO is looking at opportunities for off-shore production. According to the CEO, a low wage country will give the company a cost advantage, while a high unemployment rate will mean that there ..

Find sse s2 and s for the least squares lines : Learning the mechanics. Suppose you ?t a least squares line to nine data points and calculate SSE = .219. Find s2, the estimator of the variance σ 2 of the random error term ε.

Extract polyphenol oxidase from mushroom : Extract polyphenol oxidase from mushroom and to to examine the effect of substrate concentration on the rate of the browning reaction.

Portions of the financial statements for hawkeye company : Prepare the cash flows from operating activities section of the statement of cash flows for Hawkeye Company using the indirect method.

Majority of schools of medicine-dentistry-nursing : The majority of schools of medicine, dentistry, nursing, and other professions and their teaching hospitals are heavily subsidized by federal and state funds. Do health care providers who reap the benefits of high compensation and social position hav..

How many days will in the residence hall get infected : Now, in how many days will a total of 250 students in the residence hall get infected? Use a constant of propottionality accurate up to four decimal places.

User Account

All Pages