If a group of independent variables are not significant individually but are significant as a group at a specified level of sign ificance, this is most likely due to: A) the absence of dummy variables.
B) the presence of dummy variables.
C) autocorrelation.
D) collinearity.
1 answer:
Answer:
D) collinearity
Step-by-step explanation:
Collinearity occurs when a few of the independent variables are related or match up. Collinearity increases the large proportion the variance of an estimated regression coefficient which leads to certain regression coefficient having wrong signs. It is used to explain the relationship between two variables.
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Answer:
1 1/4 pounds
Step-by-step explanation:
You can write the equation ...
(1/2) lb = (2/5) × container
Multiplying by the inverse of 2/5 gives ...
(1/2)·(5/2) lb = container
5/4 lb = container
container = 1 1/4 lb
Answer: s = 8
Step-by-step explanation:
<span>width = x </span><span>length = x+5 2x + 2(x+5) = 46 2x + 2x + 10 = 46 4x = 46 - 10 4x = 36 x = 36/4 </span><span> x = 9 in </span> ← width length = x+5 = 9 + 5 = 14 in <span> Area = 9 * 14 = 126 in</span>²<span> </span>
Answer:
¾
Step-by-step explanation:
☆ (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate
Slope of line
Answer:
C. 9
Step-by-step explanation:
y = -4x^2 + 2kx
subtitute 3:
y = -4(9)^2 + 2k(9)
y = -4(81) + 18k
let y = 0
=> 0 = -324 + 18k
=> k = 324/18 = 9
this is my calculations hope it helps