Least squares regression of Y on A-D based on sample size of 506. Reported results with standard errors are:
Y = 11.08 - 0.954*A - 0.134*B + 0.255*C - 0.052*D
s.errs (0.32) (0.117) (0.043) (0.019) (0.006)
R^2 = 0.581
problem A. Test null that coefficient on D is equal to 0
d =...
Least squares regression of Y on A-D based on sample size of 506
Y = 11.08 - 0.954*A - 0.134*B + 0.255*C - 0.052*D
s.errs (0.32) (0.117) (0.043) (0.019) (0.006)
R^2 = 0.581
problem A. Test null that coefficient on D is equal to 0
d = coefficient on D
null: D ~ N(0, 0.006)
Pr(d...
Least squares regression of Y on A-D based on sample size of 506
Y = 11.08 - 0.954*A - 0.134*B + 0.255*C - 0.052*D
s.errs (0.32) (0.117) (0.043) (0.019) (0.006)
R^2 = 0.581
problem A. Test null that coefficient on D is equal to 0
d = coefficient on D
null: D ~ N(0...
Homework Statement
Find equivalent capacitance between terminalsHomework Equations
C_eq = C_1 + C_2 for parallel
C_eq = 1/((1/C_1) + (1/C_2))The Attempt at a Solution
I can't tell what's in parallel and what's in series. That conductor in the center is throwing me off.
Any help por favor?
You...
(1/2) + (2/4) + ... + (n/(2^n))
=
sum i=1 to i=infinity of (i/(2^i))?i know how to express the sum of just 1/(2^i), but not the above
thanks for the help!
So I have an array p(t) = e + td, where e is the start position, t is some parameter, and d is the direction of the ray
For a sphere with center c and radius R, the vector form equation is (p-c).(p-c)-R^2=0
This can be algebraically manipulated into:
t = (-d.(e-c) +- sqrt((d.(e-c))^2 -...
This isn't a homework question. You guys are smart so I was wondering if you could somehow figure out the mysterious function f based on a few examples:
f(26134914) = 2085386485
f(26288902) = 2085920342
f(26289423) = 2094236422
f(26356300) = 2086136115
What is "f" doing to convert that 8 digit...
URGENT: simple problem... 3x = 1 (mod 16), find all possible values of x mod 16
simple problem... 3x = 1 (mod 16), find all possible values of x mod 16
so this is what I've come to:
3x = 1 + 16k, where k is any integer
i'm stuck though, any help?
thanks
simple problem... 3x = 1 (mod 16), find all possible values of x mod 16
so this is what I've come to:
3x = 1 + 16k, where k is any integer
i'm stuck though, any help?
thanks
yes i need the radius from the center as opposed to one of the foci...
what is the formula? I'm not sure how to convert to polar coordinates
x = rcos(theta)
y = rsin(theta)
and plug those values into that equation and solve for "r"? or am i doing something wrongly?