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AnnZ [28]
2 years ago
7

Find the value if x=2+root3

Mathematics
1 answer:
Misha Larkins [42]2 years ago
7 0

Answer:

x=2+ root(3)

x= 2 + 1.73

x=3.74

Rate positively and give brainlist

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A statistics practitioner in a large university is investigating the factors that affect salary of professors. He wondered if ev
Ulleksa [173]

Answer:

Step-by-step explanation:

Hello!

Given the linear regression of Y: "Annual salary" as a function of X: "Mean score on teaching evaluation" of a population of university professors. It is desired to study whether student evaluations are related to salaries.

The population equation line is

E(Y)= β₀ + β₁X

Using the information of a n= 100 sample, the following data was calculated:

R²= 0.23

                Coefficient    Standard Error  

Intercept    25675.5           11393

x                  5321                  2119

The estimated equation is

^Y= 25675.5 + 5321X

Now if the interest is to test if the teaching evaluation affects the proffesor's annual salary, the hypotheses are:

H₀: β = 0

H₁: β ≠ 0

There are two statistic you can use to make this test, a Student's t or an ANOVA F.

Since you have information about the estimation of  β you can calculate the two tailed t test using the formula:

t= \frac{b - \beta }{\frac{Sb}{\sqrt{n} } } ~t_{n-2}

t= \frac{ 5321 - 0 }{\frac{2119}{\sqrt{100} } } = 25.1109

The p-value is two-tailed, and is the probability of getting a value as extreme as the calculated t_{H_0} under the distribution t_{98}

p-value < 0.00001

I hope it helps!

3 0
3 years ago
In circle N with m \angle MNP= 48m∠MNP=48 and MN=16MN=16 units find area of sector MNP. Round to the nearest hundredth.
Dafna11 [192]

Answer:

A=107 square\ unit

Step-by-step explanation:

From the question we are told that:

 \angle MNP= 48m

 \angle  MN=16 unit

Generally the equation for Area of a sector A is mathematically given by

 A=\frac{\theta}{360}*\pi*r^2

 A=\frac{48}{360}*3.14*16^2

 A=107.18 square\ unit

 A=107 square\ unit

4 0
2 years ago
Read 2 more answers
10. Allen has $3.30 in dimes and quarters. If he has 24 coins in all, find the number of dimes and quarters
agasfer [191]

Answer:

6 Quarters and 18 Dimes

Step-by-step explanation:

18 x 0.10 = $1.8

6 x 0.25 = $1.5

$1.5 + $1.8 = $3.30

3 0
2 years ago
How many pounds is 454 grams
Eduardwww [97]
The answer is 1.001 pounds.
7 0
2 years ago
Read 2 more answers
Simplify 10 1/2(1 1/7x+2/3)+5 5/6(2 2/5x+4 2/7)​
joja [24]

Answer:

26x+32

Step-by-step explanation:

5 0
3 years ago
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