How one conducts an f test to test such a hypothesis

Reference no: EM13185518

Run a regression of testscr on str and avginc, where testscr and str are as above, and avginc is a measure of the average household in come in the school district.

a. What is the correlation between str and avginc. Does this correlation suggest the model specification suffers from serious multicolinearity?

b. What is the estimated effect of str on testscr?

c. Now create a scatterplot of testscr on avginc, and use OLS to fit a straight line to the data. Do you think this simple regression equation suffers from specification bias? If so, how?

d. What is the probability that all the population slope coefficients are actually zero, but the coefficients we estimated are different from zero due merely to random sampling variability? In other words, what is the probability that the R2 is actually zero? Explain how one conducts an F test to test such a hypothesis.

Reference no: EM13185518

Questions Cloud

Derive an identity for nck via inclusion-exclusion : Derive an identity for nCk via inclusion-exclusion by counting the k-multisets of [n] in which each element of [n] appears at most once. use p_i = "element i appears more than once in the multiset" as the i-th property, for 1

State what is the atomic radius of a cs atom : What is the atomic radius of a Cs atom( either in pm or A) . State assumptions used

Find the volume of the volcano : A volcano fills the volume between the graphs z=0 and z=1/(x^2+y^2)^9 and outside the cylinder x^2+y^2=1. Find the volume of the volcano.

Explain the high-temperature behavior of nitrogen oxides : Understanding the high-temperature behavior of nitrogen oxides is essential for controlling pollution generated in automobile engines. The decomposition of nitric oxide (NO) to N2 and O2 is second order with a rate constant of 0.0796 M?

How one conducts an f test to test such a hypothesis : What is the probability that all the population slope coefficients are actually zero, but the coefficients we estimated are different from zero due merely to random sampling variability In other words, what is the probability that the R2 is actual..

Which satisfy the conclusion of the mean value theorem : The function f is graphed below on the interval [0,10].Give the number of valuesc between 0 and 10 which satisfy the conclusion of the mean value theorem for f.

Find the expected value and the variance of x : Find the expected value and the variance of X, the number of inspected bottles with serious defects.

Define henrys law constant for oxygen : what is the concentration of oxygen in air-saturated water at 25 degrees C and .85 atm? Assume that the mole fraction XO2 is .209 and Henry's law constant for oxygen

What would our critical value be with an alpha of .05 : If we have 2 groups with 5 characteristics each, what would our critical value be with an alpha of .05?

User Account

All Pages