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2 years ago

The overall regression F-statistic tests the null hypothesis that:____.

Mathematics

1 answer:

AnnZ [28]2 years ago

8 0

Answer:

Step-by-step explanation:

F test is a statistical method used to determine which models best fits the population from which the sample is derived. It is a ratio of two variances. Variance measure the rate of dispersion

The formula for calculating f-test = explained variance / unexplained variance

There are two hypothesis in an f test :

1. the null hypothesis - all slope coefficient are equal to zero

the alternative hypothesis : at least one of the slope coefficient is not equal to zero

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What is 4 a whole number as a fraction note: this is for my little sister!

bonufazy [111]

Answer:

4/1

Step-by-step explanation:

Dividing any number by 1 gives you the same number, therefore 4/1 is the fraction form.

4 0

3 years ago

A horse has a speed of 10 miles per hour. The horse has already traveled 15 miles. How many miles will it travel in total if it

mojhsa [17]

Answer:

40 miles

Step-by-step explanation:

the horse travels 10 miles an hour

1 hour = 10 miles

2 hours = 20 miles

3 hours = 30 miles

4 hours = 40 miles

or you could just do 10 x 4

hope that helps :)

5 0

3 years ago

Write 75% as a decimal and fraction in simplest form. SHOW ALL WORK.

Andrews [41]

75% means 75 per cent, or per hundred.
"Per cent" means "per hundred" or "0.01".
This means that 75% is 0.75 in decimal form.
75% as a fraction means 75 per hundred.
Keep in mind that "per" means to divide.
So, let's translate this into parenthesis.
75 (75) per (/) hundred (100).
Rewrite with only the parenthesis.
75 / 100.
This is 75% in fraction form, but isn't simplified. We can divide both numbers by 25.
75 / 25 = 3
100 / 25 = 4
Your simplified fraction is 3/4.

I hope this helps!

7 0

3 years ago

How to solve -66.17738=6.618(4.3x+1.1)-7.1(x-6.8) have not done algebra in 30 years and cannot help my son with this problem

fenix001 [56]

Let's solve your equation step-by-step.

−66.17738=6.618(4.3x+1.1)−7.1(x−6.8)

Step 1: Simplify both sides of the equation.

−66.17738=6.618(4.3x+1.1)−7.1(x−6.8)

−66.17738=(6.618)(4.3x)+(6.618)(1.1)+(−7.1)(x)+(−7.1)(−6.8)(Distribute)

−66.17738=28.4574x+7.2798+−7.1x+48.28

−66.17738=(28.4574x+−7.1x)+(7.2798+48.28)(Combine Like Terms)

−66.17738=21.3574x+55.5598

Step 2: Flip the equation.

21.3574x+55.5598=−66.17738

Step 3: Subtract 55.5598 from both sides.

21.3574x+55.5598−55.5598=−66.17738−55.5598

21.3574x=−121.73718

Step 4: Divide both sides by 21.3574.

21.3574x

21.3574

−121.73718

21.3574

x=−5.7

4 0

3 years ago

Read 2 more answers

"Anik" is the name of a series of Canadian communications satellites. The first Anik shown here, was launched in 1972. It was a

Ann [662]

The surface area would be 26.5487 m².

The surface area of a cylinder is equal to the area of the circles at both ends, added to the area of the rectangular portion in the middle. The rectangle in the middle has a width equal to the circumference of the circle and a length equal to the height of the cylinder.

The circumference of a circle is given by C = πd, and the area of the circles is given by A=πr².

Since the height is in meters, we will convert it to cm. 3.5 m = 350 cm.
The diameter is 190 cm, so the radius is 190/2 = 95 cm.

This gives us:
SA = 3.14(190)(350)+2(3.14)(95)²
= 208810 + 56677 = 265487 cm² = 26.5487 m²

8 0

3 years ago