Answer:
B
Step-by-step explanation:
Which of the following statements is not a consequence of serious multicollinearity? Select one: a. The significance of the f-statistic and t-statistics tend to disagree. b. The slope coefficients are not as easily interpreted. c. The t statistics for slope are generally insignificant: d. The standard errors for the slope coefficients are decreased. e. Confidence intervals for slope coefficients are wider
The statement that is not a consequence of serious multicollinearity is: d. The standard errors for the slope coefficients are decreased.
Multicollinearity refers to a high degree of correlation among independent variables in a regression model. It can lead to various consequences that affect the interpretation and statistical properties of the model. The other options listed—such as a, b, c, and e—highlight some of the common consequences of serious multicollinearity. These include disagreement between the significance of the f-statistic and t-statistics (a), difficulties in interpreting slope coefficients (b), generally insignificant t statistics for the slope (c), and wider confidence intervals for slope coefficients (e). These consequences occur due to the issues introduced by multicollinearity, such as instability in the estimates and inflated standard errors.
However, the statement d. "The standard errors for the slope coefficients are decreased" is not a consequence of serious multicollinearity. In fact, multicollinearity tends to increase the standard errors of the regression coefficients. This occurs because the presence of multicollinearity makes it difficult to precisely estimate the effect of each independent variable on the dependent variable, leading to increased uncertainty in the coefficient estimates and wider standard errors. Therefore, option d does not align with the typical consequences of serious multicollinearity.
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Calculate the yield statistic for a hotel with an actual room revenue of $525,800 and a potential rooms revenue of $600,500.
Answer:
The yield statistic is: 87.6%
Step-by-step explanation:
Given
\(ARR = \$525800\)
\(PRR = \$600500\)
Required
Determine the yield statistic
This is calculated as:
\(Yield = \frac{ARR}{PRR}\)
\(Yield = \frac{\$525800}{\$600500}\)
\(Yield = \frac{525800}{600500}\)
\(Yield = 0.87560366361\)
Approximate
\(Yield \approx 0.876\)
Express as percentage
\(Yield \approx 87.6\%\)
n is an integer and -2
Write down the possible values of n,
from smallest to largest.
Answer:
Step-by-step explanation:
-2 < n+3 ≤ 4
Make two separate equations,
-2 < n+3
Subtract 3 from both sides,
-2-3 < n + 3 -3
-5 < n
So, value of n should be greater than (-5)
n +3 ≤ 4
Subtract 3 from both sides
n ≤ 1
So, n value should be less than or equal to 1
So, n value should be greater than -5 and less than or equal to 1
n= { -4, -3 , -2 , -1 ,0 ,1 }
HOPE IT HELPS
NEED HELP PLS 45 POINTS
Answer:
-1.13
Step-by-step explanation:
you can count the lines and get the answer, one line down from -1.1 is -1.11 since -1.1 is technically -1.10 and you keep counting until the dot
two angles directly across from each other on intersecting lines Is called?
help meeeeeeeeeeee
pls
Answer:
with what lol?
Step-by-step explanation:
Answer:
with what
Step-by-step explanation: ican help
Write the equation of the line that passes through the points (3,-8) and (-8, 1).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:In order to write an equation for a line when we are only given 2 points it passes through, we first need to determine the slope of the line. The slope of the line is found by dividing the difference in the y-coordinates of the 2 points by the difference in the x-coordinates of the 2 points. (mathematically known as rise over run), (you may remember hearing this in class)
Step-by-step explanation:
y1-y2 / x1-x2 is the formula we will use to find the slope.
Pick one of the coordinates to be 1 and let the other be 2. We will let (3, 8) be 1 and (1, 0) be 2 because it has a 0 and subtracting 0 is easier.
Remember - whichever point contains y1, must also contain x1.
Our slope is found by substituting
(8 - 0) / (3 - 1) =
8 / 2 = 4. So the slope is 4.
Our equation for the line must be in the form of
y = mx + b (m is the slope and be is the y-intercept, where the line crosses the y-axis)
Again, choose a point and we will finish the equation. Let's use (1, 0). Always easier to use when there is a 0.
We will substitute our coordinates into the equation -
y - y1 = m(x - x1)
y - 0 = 4(x - 1)
y = 4x - 4 - your equation.
You can check your work by using the other point, (3, 8)
y = 4x - 4
8 = 4(3) - 4
8 = 12 - 4
Because this equation is true, your equation for the line is correct.
Hope this helps.
Determine the value of x.
Options:
A) x = 11.2
B) x = 56
C) x = 12.4
D) x = 10
Answer:
as lengths of tangents of a circle from an external point are equal so
5x+6 = 56
5x = 50
x = 50/5
D) x = 10
four and twenty blackbirds is how many dozen?
Answer:
2 dozen
Step-by-step explanation:
four and twenty blackbirds is how many dozen?
four and twenty = 24
because there are 12 in one dozen:
24/12 = 2 dozen
A ladder 50 dm long when set against the wall of a house just reaches a window at a height of 48 dm. How far is the lower end of the ladder from the base of the wall?
Answer:
14dm
Step-by-step explanation:
To solve this question we can use the Pythogorean theorem
a^2 + b^2 = c^2
In this case, The ladder is the hypotenuse, the height is one of the leg of the right angle triangle
Let's keep the missing side as x
If we apply the theorem,
x^2 + 48^2 = 50^2
x^2 + 2304 = 2500
x^2 = 2500 - 2304
x^2 = 196
\(x = \sqrt{196} \\ x = 14\)
anyone help me? Solve this problem
the answer is in the picture I mentioned as the answer ok ◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉◉‿◉
Simplify (2.4 x 10−9) − (5.5 x 10−8). Write the final answer in scientific notation.
−3.1 x 101
−3.1 x 10−1
−5.26 x 10−8
−5.26 x 10−9
(2.4*10^-9)-(5.5*10^-8) = -5.26*10^-8 is the final answer.
Scientific notation is a form of presenting a very small or very large number in simple form. it is in the form of multiplication of one digit with 10 raise to the power of respective exponent. plus power is used for huge number and minus power is used for tiny number.
In this given question we have to subtract the numbers, To subtract the numbers first we equal the powers of both numbers.
Factor out 1 of the powers of 10
\((2.4\times\frac{10^-9}{10^-8}-5.5\times\frac{10^-8}{10^-8})\times10^-8\)
Perform division of exponent
\((2.4\times10^-1-5.5\times10^0)\times10^-8\)
Convert scientific notations to real numbers
(0.24-5.5)*10^-8
Perform real number subtraction
(-5.26)*10^-8
This is the perfect form of scientific notation
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Answer:
The correct answer is 3.1 x 10^-1
Step-by-step explanation
You need to subtract 5.5 and 2.4 = 3.1
because you subtracted big to small you need to put a negative before the answer -3.1
You then need to find how many times you have to move the decimal place and add a negative before it.
The correct answer will be 3.1 x 10^(-1)
At what point do the curves and intersect? find their angle of intersection correct to the nearest degree.
The intersection of two curves is important because it marks the spot where the values of the two curves coincide. There are numerous applications for this.
What are angles?When two lines meet at a point, an angle is created. An "angle" is the measurement of the "opening" between these two rays. It is symbolized by the character.
The circularity or rotation of an angle is often measured in degrees and radians. Angles are a common occurrence in daily life. Angles are used by engineers and architects to create highways, structures, and sports venues.
When two rays are linked at their ends, they create an angle in geometry.
The sides or arms of the angle are what are known as these rays. Read on to learn about the various components of an angle.
Hence, The intersection of two curves is important because it marks the spot where the values of the two curves coincide. There are numerous applications for this.
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4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form
Answer:
4(x²+14x+49)-49+13=0
4x²+56x+196-49+13=0
4x²+56x+160=0
D=3136-2560=576
x1=-56+24/8=-4
x2=-56-24/16=-10
what is the major assumption about the distribution of returns that we have to make to get to this objective function?
To arrive at the objective function, we must make the main assumption that the returns are normally distributed
What main assumption should we make?The objective function is a mathematical expression used to represent the goal of a problem in terms of one or more variables. In finance, the objective function is used to represent the goal of maximizing returns.
The distribution of returns is an important factor to consider when creating an objective function for an investment portfolio. Returns are the gains or losses an investor makes on his investments. The distribution of returns refers to the way in which these returns are distributed in the portfolio.
To arrive at the objective function, we must make the main assumption that the returns are normally distributed. A normal distribution is a bell-shaped curve that represents the distribution of data in a population. In finance, normal distributions are used to model portfolio returns because they ensure a good approximation of how returns are distributed across a wide range of investments.
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100x2+200x+100
Factoring
Answer:
x=1
Step-by-step explanation:
((22•52x2) - 200x) + 100 = 0
Answer:
Step-by-step explanation:
100x^2 + 200x + 100
(10x + 10)(10x + 10) or (10x + 10)^2
100x^2 + 100x + 100x + 100
100x^2 + 200x + 100
need the answers step by step for 10-13
Answer:
Step-by-step explanation:
10) Plugin x = -10 in the equation
h(x) = 0.2x - 4.5
h(-10) = 0.2*(-10) - 4.5
= - 2 - 4.5
= -6.5
11) Plugin a = 8 in the equation
g(a) = (-3/4)a + 2
\(g(8) = \dfrac{-3}{4}*8 + 2 \\\\= -3*2 + 2\\\\= -6 + 2\\\\= -4\)
12) h(x) = 3x +3
h(x) = 0
3x +3 = 0
Subtract (-3) from both sides
3x = - 3
Divide both sides by 3
x = -3/3
x = -1
13) g(x) = - x - 5
g(x) = 4
-x - 5 = 4
Add 5 to both sides
-x = 4 + 5
-x = 9
Multiply both sides by (-1)
x = -9
7, 3, 5, 6, 4, 8,4,7, 8, 8
Mean__
Median__
Mode__
Range__
Answer:
Mean: 6
Median: 6.5
Mode: 8
Range: 5
Answer:
Mean: 6
Median: 6.5
Mode: 8
Range: 5
Step-by-step explanation:
Write the approximate value of 0.12456
upto 3 significant figures.
Step-by-step explanation:
be62vw6vwebe6e6be6ev6eb6eb6eb7eb7eebe73
HELPP Write the equation of the given line in slope-intercept form:
Answer:
y = -3x - 1
Step-by-step explanation:
The slope-intercept form is y = mx + b
m = the slope
b = y-intercept
Slope = rise/run or (y2 - y1) / (x2 - x1)
Point (-1, 2) (1, -4)
We see the y decrease by 6 and the x increase by 2, so the slope is
m = -6 / 2 = -3
Y-intercept is located at (0, - 1)
So, the equation is y = -3x - 1
Given tan u=15/8, with u in quadrant III and cos v=-5/13 with v in quadrant II. find sin(u+v)
The value of sin(u+v) given tan u = 15/8 is -9/221
What are trigonometric ratios?Trigonometric ratios are the ratios of the length of sides of a triangle. These ratios in trigonometry relate the ratio of sides of a right triangle to the their angles.
A right-angled triangle has 3 sides, hypotenuse, opposite and adjacent. The following should be noted:
Sin = Opposite / Hypothenuse
Tan = Opposite / Adjacent
Cos = Adjacent / Hypothenuse
When tan u = 15/8
Opposite = 15
Adjacent = 8
Hypothenuse will be:
= ✓(15² + 8²)
= ✓(225 + 64)
= ✓289
= 17
Therefore sin u = 15/17
When cos v = -5/13, it should be noted that sin v will be -12/13.
Therefore, sin(u + v) will be:
= 15/17 + (-12/13)
= 15/17 - 12/13
= 195/221 - 204/221
= -9/221
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PLEASE HELP ME
What is the value of this expression
Answer:sorry
Step-by-step explanation:
Gabby spents $44.10 for 14 gallons of gas.what was the unit cost or price per gallon
Answer:
The unit cost is $3.15
Step-by-step explanation:
Here, we want to get the price per gallon
mathematically, that will be total amount spent divided by the number of gallons
That will be;
44.10/14 = $3.15
Which unit lengths represent the sides of a right triangle? Select all that apply.
A 11, 60, and 61
B 12, 35, and 37
C 8, 12, and 13
D 6, 8, and 15
Answer:
C, as 8^2 = 64, 12^2 = 144, and 13^2 = 169. (Right triangle because 64 + 144 = 169)
solve in 20 mins i will thumb up thanks
Problem 6 (15 points) Determine if the following systems is a) Linear b) Time-invariant c) Causal. Justify your answer. y(t) = x(t)sinwet 1
This can be verified by observing that the output signal y(t) does not depend on future input signals x(t + t0) for any value of t0. Therefore, the given system is causal.
The given system is not linear and time-invariant but it is causal. The reasons for this are explained below: The given system is not linear as the output signal is not proportional to the input signal.
Consider two input signals x1(t) and x2(t) and corresponding output signals y1(t) and y2(t). y1(t) = x1(t)sin(we*t) and y2(t) = x2(t)sin(we*t)
Now, if we add these input signals together i.e. x(t) = x1(t) + x2(t), then the output signal will be y(t) = y1(t) + y2(t) which is not equal to x(t)sin(we*t). Therefore, the given system is not linear. The given system is not time-invariant as it does not satisfy the principle of superposition.
Consider an input signal x1(t) with output signal y1(t).
Now, if we shift the input signal by a constant value, i.e. x2(t) = x1(t - t0), then the output signal y2(t) is not equal to y1(t - t0). Therefore, the given system is not time-invariant.
The given system is causal as the output signal depends only on the present and past input signals.
This can be verified by observing that the output signal y(t) does not depend on future input signals x(t + t0) for any value of t0. Therefore, the given system is causal.
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Give answers seperately
eg. trainge = _____________
rectangle = ______________
In the square and rectangle all four angles are right angle.
What is quadrilateral?A quadrilateral is a polygon with four sides four angles and four vertices. Whenever we name a quadrilateral, we need to keep in mind the order of the vertices.
Here,
Square Rectangle Parallelogram Rhombus Trapezium Kite
2 pairs of
parallel sides Yes Yes Yes Yes
1 pair of
parallel sides Yes
No right angles Yes Yes Yes Yes
4 right angles Yes Yes
All sides equal Yes Yes
length
Opposite sides Yes Yes
equal length
Opposite angles Yes Yes Yes Yes
are equal
Therefore, in the square and rectangle all four angles are right angle.
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If the total cost of x apples is b cents, what is a general formula for the cost, in cents,
of y apples?
A. B/xy. B. x/by C. xy/b D. by/x E. bx/y
Answer:
by/x cents
Step-by-step explanation:
if x apples cost b cents then 1 apple with cost b/x cents and y apples will cost (b/x)×y which gives by/x cents
Help !! No work is needed to be shown
Step-by-step explanation:
By Law of Indices, a^m / a^n = a^(m-n).
Therefore a² / a⁸ = a^(-6).
x = -6.
2. 4x + 5y = -30
Slope-standard form
if -5,3 and 5,3 are two vertices of an equilateral triangle, then find the coordinates of the third vertex, given that orgin lies inside the triangle (Take √3 = 1.7)
Therefore, The Coordinates of the THIRD VERTEX is: ( 5, -3 )
Step-by-step explanation:Calculate the midpoint of the given vertices:
MidPoint = ( -5 + 5/2, 3 + 3/2 )
MidPoint = ( 0, 3 )
Calculate the distance between the given vertices:Distance = √( -5 -5 )^2 + ( 3 - 3 )^2
Distance = √( -10 )^2 + (0)^2
Distance = √100
Distance = 10
Calculate the side length of the equilateral triangle:Side Length = 10/√3
Side Length = 10/1.7
Side Length = 5.88
Calculate the height of the Third Vertex:Height = √3/2 * Side Length
Height = 1.7/2 * 5.88
Height = 5
Calculate the Coordinates of the Third Vertex:Since the origin lies inside the triangle, The Third Vertex will have a Positive X-Coordinate and a Negative Y-Coordinate.
Now, Let the Third Vertex Be:( x, y )
Using the MidPoint Formula now we have:x = -5 + x/2
y = 3 + y/2
Solve for X and Y, we now get:x = 5
y = -3
Draw a conclusion:Hence, The Coordinate of the Third Vertex is: ( 5, -3 )
I hope this helps!