Problems of regression equation

Assignment Help Basic Statistics

Reference no: EM1395778

In a regression analysis involving 27 observations, the following estimated regression equation was developed.

y = 25.2 + 5.5x1

For this estimated regression equation SST = 1550 and SSE = 520

a. At a = .05, test whether x1 is significant.

Suppose that variables x2 and x3 are added to the model and the following regression equation is obtained.

y = 16.3 + 2.3x1 + 12.1x2 - 5.8x3

For this estimated regression equation SST = 1550 and SSE = 100.

b. Use an F test and a .05 level of significance to determine whether x2 and x3 contribute significantly to the model.

Reference no: EM1395778

Questions Cloud

Explain how would you characterize the strategy coke : Explain how would you characterize the strategy Coke is now pursuing? Illustrate what is the enterprise trying to do? Explain how is this different from the strategies of both Goizueta also Daft? Illustrate what are the benefits? Illustrate what a..

Calculating beta for the test : Use a significance level of alpha = .05 to test the claim that p > .5. The sample is a simple random sample n = 50. Show how to calculate beta for the test and assume the true population proportion is .6.

Illustrate what are the three most urgent tactics necessary : describe the current position of your project industry with regards to your closest competitor. Illustrate what are the three most urgent tactics necessary to strengthen your position in the market? Refer to Trout also Rise Positioning to support ..

Why batesian mimicry is a process : Batesian mimicry is a process wherein: a. Non-toxic organisms evolve the appearance of toxic counterparts to avoid predation b. An organism evolves the appearance of natural color and texture gradients in the environment to avoid predation c. Orga..

Problems of regression equation : In a regression analysis involving 27 observations, the following estimated regression equation was developed.

Create memo for office staff about december holiday party : You have been asked to draft the memo to office staff about December holiday party. Make a decision what type of party you would like.

Calculating the vapor pressures : A mixture of liquids A and B exhibits ideal behavior. At 84C, the total vapor pressure of a solution containing 1.2 moles of A and 2.3 moles B is 331 mmHg.

Llustrate what are these other agency relationships : llustrate what are these other agency relationships also Explain how would you respond to this person, would you accept or reject this view? Please support your position.

Can viruses evolve : Can viruses evolve? Why or why not? a. No, only their hosts can evolve. b. Yes, their genetic make-up responds to natural selection. c. No, they are not alive. d. Yes, they are able to alter their genetic code directly in response to selection pre..

User Account

All Pages