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olganol [36]
3 years ago
10

A multiple regression model involves 5 independent variables and a sample of 10 data points. If we want to test the validity of

the model at the 5% significance level, the critical value is:

Mathematics
1 answer:
Ber [7]3 years ago
5 0

Answer:

The critical value is 6.26.

Step-by-step explanation:

It is provided that there are 5 independent variables involved in a multiple regression model and the sample consist of 10 data points.

The critical value of <em>F</em> to test the significance of the model is:

\text{Critical Value}=F_{\alpha, (k, n-k-1)}

Here,

<em>k</em> = number of independent variables

<em>n</em> = number of observations.

Then the critical value is:

\text{Critical Value}=F_{\alpha, (k, n-k-1)}

                      =F_{\alpha, (5, 10-5-1)}\\=F_{0.05,(5, 4)}\\=6.2561\\\approx 6.26

*Use a F-table.

Thus, the critical value is 6.26.

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F(x) = x2 + 4x − 6
german

Since

x^2+4x+4=(x+2)^2

Is a perfect square, we can think of the "-6" at the end as a "+4-10" and we have

x^2+4x-6 = x^2+4x+4-10 = (x+2)^2-10

Which is the required form

6 0
3 years ago
-5/-2 divided by 6/7
Yuri [45]

Answer:2.91666666667

Step-by-step explanation:

6 0
3 years ago
The dashed triangle is the image of the solid triangle. The center of dilation is (−5, 7) .
adell [148]
Before dilation:
the height of the triangle is h₁ = 7 - (-1) = 8
the width of the triangle is w₁ = 7 - (-5) = 12

After dilation:
the height of the is h₂ = 9-7 = 2
the width of the triangle is w₂ = -5 - (-8) = 3

The scale factor is h₂/h₁ = 2/8 = 1/4 = 0.25
Also, the scale factor is w₂/w₁ = 3/12 = 1/4 = 0.25

Answer: The scale factor is 0.25

3 0
3 years ago
Read 2 more answers
18.) A cylinder and a cone have the same radius and<br> the same volume. How do the heights compare?
mart [117]

Answer:

If a cone and a cylinder have the same base and the same height, then the volume of the cone is of the volume of the cylinder. For example, the cylinder and cone shown here both have a base with radius 3 feet and a height of 7 feet. The cylinder has a volume of cubic feet since .

Step-by-step explanation:

6 0
2 years ago
The value of homes sold in Hampton VA are normally distributed with a mean of $200,000 and a standard deviation of $10,000. If 1
LenKa [72]

Answer:

84%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 190000 we have:

z = (190000 - 200000) / (10000)

z = -1

and this value represents 0.1587

for 230000 we have:

z = (230000 - 200000) / (10000)

z = 3

and this value represents 0.9987

we subtract:

0.9987 - 0.1587 = 0.84

Which means that it represents 84% of the houses

3 0
3 years ago
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