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butalik [34]
3 years ago
9

In testing the validity of a multiple regression model in which there are four independent variables, the null hypothesis is:___

______.
Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer: H0 : β1 = β2 = β3 = β4 = 0

Step-by-step explanation:

The null hypothesis refers to a hypotheses that simply states that no relationship exists between two phenomenons that are being tested.

In testing the validity of a multiple regression model in which there are four independent variables, the null hypothesis is H0 : β1 = β2 = β3 = β4 = 0.

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I really need help.the directions is to find the value for b
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Answer:

Step-by-step explanation:

243+94+b=360

            b=360-337

              =23

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3 years ago
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Martha is making a recipe that requires 2/5 of a cup of sugar she only has 1/3 of a cup of sugar at home though what fraction of
Anestetic [448]

Answer:

11/15 cups

Step-by-step explanation:

2/5 * 1/3 =

2    *    1            6        5         11

_         _     =     _   +   _    =   _

5    *    3           15       15        15

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3 years ago
A boat uses two pontoons to float. Each pontoon consists of a cylinder with a hemisphere at each end, as shown. Find the total v
zubka84 [21]

Answer:

Total \approx 20ft^3

Step-by-step explanation:

Given

h = 12ft --- height of the cylinder

d =1ft --- the diameter of the hemispheres at both end and the cylinder

See attachment for pontoon

Required

Determine the volume

First, calculate the radius (r)

r = \frac{1}{2} * d

r = \frac{1}{2} * 1ft

r = 0.5ft

Next, the volume of the cylinder

V_1 = \pi r^2h

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V_1 = 9.42ft^3

Two hemispheres make up a sphere. So, we simply calculate the volume of a sphere.

V_2 = \frac{4}{3}\pi r^3

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So, the volume of 1 pontoon is:

V_3 = V_1 + V_2

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Total = 2 * V_3

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Total \approx 20ft^3

3 0
2 years ago
Write the expression the sum of 13 and a number
labwork [276]

Answer:

13+2h

Step-by-step explanation:

The word "sum" can  be related to "addition" and "13 and a number" is just "13" and an exponent.

7 0
3 years ago
What is the sum of the polynomials?
VMariaS [17]

Answer:

3x² + 6x + 4

Step-by-step explanation:

6x + 7 + x² + 2x² - 3

→ Collect like terms

x² + 2x² + 6x + 7 - 3

→ Simplify

3x² + 6x + 4

6 0
1 year ago
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