Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
Performance 59 63 65 69 58 77 76 69 70 64
Attitude 72 67 78 82 75 87 92 83 87 78
Be sure to use the appropriate explanatory and the appropriate response variable.
a. y = 92.3 - 0.669x
b. y = 100.3 - 0.453x
c. y = 11.7 + 1.02x
d. y = 2.81 + 1.35x
e. y = -47.3 + 2.02x

Answers

Answer 1

Answer:

The answer is "choice c".

Step-by-step explanation:

Below, we shall find the line equation, dissociation for both the management's behavior and achievement.

Here, attitudes are the response variable while performance seems to be the predictor as attitude is achievement dependant.

If Y indicates the attitude while X relates to workers' performance.

Let's describe the data like:

[tex]y=a+bx+e[/tex]

Now we get the estimates of e via the least quadratic method, – i.e., by reducing the number of segments.

[tex]S=\sum e_{i}^{2}=\sum {(y_{i}-a-bx_{i})^{2}}[/tex]

minimize S to obtain the estimates of a and b as:

[tex]\hat{b}=\frac{\sum{(y_{i}-\bar{y})(x_{i}-\bar{x})}}{\sum{(x_{i}-\bar{x})^{2}}}\\\\\hat{a}=\bar{y}-\hat{b}\bar{x}[/tex]

So,

[tex]a=11.7b=1.02[/tex]

Equation:

[tex]Y=11.7+1.02x[/tex]


Related Questions

the Satya Vansh become an important dynasty in the world of ​

Answers

Answer: it’s 352425262625251452 is 4th of July and I am present

Step-by-step explanation:

R=8 P=7 R+P= PLZ im stuck

Answers

Answer:

15

Step-by-step explanation:

The equation is just a plug in and solve. you have your given variables and all you have to do it plug them into the matching spot and solve

R=8   P=7

 8+7=15

if f (x) = ax+b , f(5) = 26 and f (2)=14 find value of a and b​

Answers

Answer:

Hope it helps you:)

.....................

pic is there answer 20 points

Answers

Answer:

(x+8)^2=0

Step-by-step explanation:

x^2+16x+64=0

8x8=64

8+8=16

Therefore, 8 fits

(x+8)^2=0

If this helps please mark as brainliest

the answer is (x+8) squared(2)=0

(easy math question please help) find the value of x question #5

Answers

Answer:

x = 10

Step-by-step explanation:

Angles in a triangle add up to 180°. Using this, we can form the following equation:

71° + 50° + 6x - 1 = 180. A simplified version is this: 120° + 6x = 180

Remove 120° from both sides to get:

6x = 60

Divide both sides to get:

x = 10

Hope this helps!

What is the image of (2, 4) after a reflection over the x-axis?

Answers

If we reflect about a line that is parallel to the x-axis, then the x-coordinate of the point (that is reflected) will remain the same, thus the image of (2,-4) has x-coordinate 2 and thus the point is of the form (2,b).

I have a large money box, about 10 inches wide and 5 inches tall. Roughly, how many coins can I place in my empty money box?"

Answers

Answer:

Overall, it depends what type of coin you are using because each ones size is different. Or, if you are referring to the riddle it will be just one coin.

The correct answer is approximately 3,968 coins can be placed in the empty money box based on estimation. Based on these calculations, you can roughly estimate  a volume  calculation that  place around 7936 coins in your empty money box, assuming the coins are similar in size to a quarter.

To estimate the number of coins that can fit in your money box, we need to consider the volume of the box and the volume of a single coin.

Calculate the volume of the money box:

Volume = Length * Width * Height

Volume = 10 inches * 10 inches * 5 inches

Volume = 500 cubic inches

Estimate the volume of a single coin. Let's assume a common coin, such as a quarter:

Diameter of a quarter ≈ 0.96 inches

Thickness of a quarter ≈ 0.07 inches

Volume of a coin ≈ π * ([tex]radius^2[/tex]) * thickness

Volume of a quarter ≈[tex]3.14 * (0.48) ^2 * 0.07[/tex]inches

Volume of a quarter ≈ 0.063 cubic inches

Calculate the number of coins that can fit in the money box:

Number of coins ≈ Volume of the money box / Volume of a coin

Number of coins ≈ 500 cubic inches / 0.063 cubic inches

Number of coins ≈ 7936 coins (approximately)

Therefore, approximately 3,968 coins can be placed in the empty money box based on estimation. Based on these calculations, you can roughly estimate  a volume  calculation that  place around 7936 coins in your empty money box, assuming the coins are similar in size to a quarter.

Learn more about volume and estimations here:

https://brainly.com/question/20664459

#SPJ2

Higher Order Thinking A student says that he was rearranging furniture at home and he used
a glide reflection to move a table with legs from one side of the room to the other. Will a glide
reflection result in a functioning table? Explain.

Answers

9514 1404 393

Answer:

  yes

Step-by-step explanation:

A table is a 3-D object. It makes no sense to talk about reflecting it across a point or line. If the table is reflected across a vertical plane, the top will remain "up" and the legs will remain "down".

A glide reflection across a vertical plane will result in a functioning table.

Currently offering 100 points.

The dot plots below show the ages of students belonging to two groups of music classes:


Based on visual inspection, which group most likely has a lower mean age of music students? Explain your answer using two or three sentences. Make sure to use facts to support your answer.

Answers

Answer:

a ?

Step-by-step explanation:

Answer:

I'm pretty sure it's A? makes more sense

Use a calculator to find the correlation coefficient of the data set.

Answers

Answer:

–0.985

The correct answer is D

63,21,7 write an explicit formula

Answers

Answer:

7×3³-n

Step-by-step explanation:

This is a geometric sequence

Use nth term of geometric sequence formula

Ratio is 27/63=1/3

First term is 63

Simplify expression

Between the first and second year of existence of a community service organization, the membership of the organization grew by 15%. Between its second and third years of existence, the community service organization's membership decreased by 10%Which of the following statements best describes the overall change in membership of the community service organization over the first three years of the organization's existence?

Answers

Answer:

i don't know the answer sorry

if the diameter of a circular wall clock is 30 cm, what is the area of rhe clock?​

Answers

Answer:

Step-by-step explanation:

radius=diameter/2

=30/2

=15 cm

area of a clock=πr^2

=3.14*(15)^2

=3.14*225

=706.5 cm^2

According to the results for Patient 2 shown above, which antigens were present in Patient 2’s blood? Check all (if any) that apply. A antigen B antigen Rh antigen Patient 2 has Type ✔ AB– blood. Based on these results, which type(s) of blood can this patient safely receive? Check all that apply. A B AB O Also, the patient should receive blood that is for Rh.

Answers

Answer:

Blood is further classified as being either "Rh-positive" (meaning it has Rh factor) or "Rh-negative" (without Rh factor). So, there are eight possible blood types: O negative... blood type doesn't have A or B markers, and it doesn't have Rh factor

Blood type AB can also be applied

Hope it helps...

Answer:

AB-

Step-by-step explanation:

In a ABC shown below, side AC is extended to point D with m Z DAB= (180 – 3x) °, mZ B= (6x – 40) °, and m ZC = (x+20) °.
Whats the measure of angle BAC?

Answers

Answer:

60°

Step-by-step explanation:

Given :

DAB= (180 – 3x) °,

mZ B= (6x – 40) °, and

m ZC = (x+20) °.

DAB = mZ B + m ZC ( the exterior angle equal the sum of the two opposite interior angles)

180 - 3x = (6x - 40) + (x + 20)

180 - 3x = 6x - 40 + x + 20

180 - 3x = 6x + x - 40 + 20

180 - 3x = 7x - 20

180 + 20 = 7x + 3x

200 = 10x

x = 200/10

x = 20

Angle B = 6x - 40 = 6(20) - 40 = 120 - 40 = 80

Angle C = x + 20 = 20 + 20 = 40

BAC = 180 - (80 + 40) (SUM OF ANGLES IN A TRIANGLE)

BAC = 180 - 120

BAC = 60°

Which represents the value of s in s + 12 2 100?

Answers

Answer:

C)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

s + 12>= 100

s>=100-12

s>=88

Jessica plans to watch 3 movies each month. Write an equation to represent the total number of movies n that she will watch in m months.

Answers

The number of movies Jessica watches each month if she watches three per month is:
Number of movies = n and if Months = m

Then 3 per month = 3m

i.e. n = 3m

Hope this helps!

Please mark Brainliest!

when measuring the radius of a sphere an error of 0.6% takes place in the measurement. What will be the permiable error while measuirng the surface

Answers

Answer:

So, the error is [tex]4.8\pi r[/tex].

Step-by-step explanation:

Error in measuring the radius = 0.6 %

Let the radius is r.

The surface area of sphere is

[tex]S= 4\pi r^2\\\\dS = 4 \pi\times 2 r dr\\\\dS =8\pi r \times 0.6 = 4.8\pi r[/tex]

what is the difference (2x minus 3) minus (x minus 1)

Answers

Answer:

x-2

Step-by-step explanation:

Answer:

x-2

Step-by-step explanation:

(2x-3) - (x-1)

= 2x-3-x+1

= x-2

Please help! Thank you!

Answers

Answer: F’(1,-8)

Explanation: Look at point F, and trace your finger one space to the right, and down five!

Identify a possible measure of the reference angle sketched in standard position
300 degrees
60 degrees
-60 degrees
-300 degrees

Answers

The first answer is correct

mark had 3/2 cans of paint and used 1/2 can for his room. what fraction of the paint did he use

Answers

Given:

Mark had [tex]\dfrac{3}{2}[/tex] cans of paint and used [tex]\dfrac{1}{2}[/tex] can for his room.

To find:

The fraction of the paint did he use.

Solution:

Total paint = [tex]\dfrac{3}{2}[/tex] cans

Paint used = [tex]\dfrac{1}{2}[/tex] can

The fraction of the paint did he use is:

[tex]\text{Required fraction}=\dfrac{\text{Paint used}}{\text{Total paint}}[/tex]

[tex]\text{Required fraction}=\dfrac{\dfrac{1}{2}}{\dfrac{3}{2}}[/tex]

[tex]\text{Required fraction}=\dfrac{1}{3}[/tex]

Therefore, Mark use [tex]\dfrac{1}{3}[/tex] of the paint.

find the square (3x+y)​

Answers

Answer:

9x² + 6xy + y²

Step-by-step explanation:

(a + b)² =  a² + 2ab + b²

a  = 3x

b = y

(3x +y)² = (3x)² + 2*3x*y + y²

            = 9x² + 6xy + y²

(3x)² = 3²*x² = 3*3*x² = 9x²

The shorter leg of a right triangle is 6ft shorter than the longer leg. The hypotenuse is 6ft longer than the longer leg. Find the side lengths of the triangle.

Answers

Answer:

mmm I think you first subtraction

I’ll give brainliest

Answers

Answer:

correct answer is d. 0.50 per pound

explanation-

equation of line is y=mx+c

where c is the point where the line intersects y axis. (0,0) in this case.

and m is the slope, which we need to find.

from the graph, when x=2, y=1. putting in above equation

1=2m+0

implies m=0.5

Answer:

$. 50 per pound

Step-by-step explanation:

We need to find the slope

We have two points (0,0) and (2,1.00)

m = (1-0)/(2-0)

  =1/2

 =.50

$. 50 per pound

Help please !!!!!!!!!!!!

Answers

Answer:

C, HL

Step-by-step explanation:

Since the triangles share a side, they have a congruent leg. Looking at the tick marks, the triangles also have congruent hypotenuses. So, they are congruent by the Hypotenuse Leg theorem.

In the diagram below, BD is parallel to XY. What is the value of y? 85

Answers

measurement of y = 110° is the answer.

find the HCF of the algebraic terms 3xy and 4x​

Answers

HCF of the algebraic terms 3xy and 4x = x

Answer:

x

Step-by-step explanation:

HCF of the algebraic terms 3xy and 4x is x because x is common in both the terms.

Bonjour, je suis en 4e et j’aimerais que vous m’aidiez avec cette feuille d’exercice s’il vous plaît ? (en précisent vos réponses).
Merci d’avance.

Answers

Step-by-step explanation:

1. Soit

T = le coût d'un ticket

5T + 1.8 = 35

T = (35-1.8)/5 = 6.64

On ne sait pas le coût d'un ticket de tramway! :(

2.

a.

1 h : 60 min

x : 18

x = 1*18/60 = 0.3, ou 0.3h

b. => 1h18m = 1.3h

3. 16 L : 4 h

a.

x L : 365*24

x = 365*24 * 16/4 = 35040 L

b.

1 m^3 = 1000 L : 5.2 euros

35040 L : y euros

y = 5.2*35040/1000 = 182.21 euros (au centième)

4.

a. Voir graphique ci-attachée.

b. On voit bien que tous les points tombent sur la droite passant par l'origine, donc la relation est linéaire, ou proportionnelle.

c. La hauteur requise pour 270L est de 100 cm, approximativement, selon la graphique.

Notez la ligne bleue horizontale.

d. L'équation de la capacité (C) versus la hauteur (h) est

C(h) = (8/3)h

Pour C=270, 270 = (8/3)h  => h=270*(3/8) = 101.25

5. et plus

Désolé, on vous conseil de soumettre une question de 4 parties ou moins.

mathematics question​

Answers

Answer:

1+1

Step-by-step explanation:

Hello,

There is no question being asked and no attachments. I am unable to help if there is nothing to help with =)

Other Questions
Which of the following is a root of the polynomial function below?F(x) = x+3x2 + 4x+12 Production equipment costing $500,000 has been purchased by a contract manufacturing company to meet the specific needs of a customer (Note: this equipment qualified for a 10% investment tax credit (ITC) at the time of purchase). The contracting award is for a 4-year contract with the possibility of extending the contract for another 4 years. The company plans to use MACRS to depreciate this equipment as a 7-year class property for tax purposes. The income tax rate for the company is 40%, and it expects to have an after-tax rate of return (MARR) of 12% for all its investments. The equipment has generated an annual income of $150,000 for the company for the first four years, however the customer decided not to renew the contract after 4 years. Consequently, the company has decided to sell the equipment for $200,000 at the end of 4 years. Required:Use the short-cut method to determine if the company has reached their rate of return (IRR) goal on this contract and investment. how much time does a stone take to reach on the surface of the earth drop from the height 20m and what will be it's acceleration due to gravity after 3 seconds 9. How much greater is 0.05723 than 0.005? ? When a legislator supports a proposal favored by another legislator in return for support of his or her own proposal, it is known as Find a domain on which f is one-to-one and non-decreasing.F(x)=(x-7)^2 What is a lingua franca, and what led to the lingua francas used in East Africa? (lingua franca) A spherical light bulb dissipates 100W and is of 5cm diameter. Assume the emissivity is 0.8 and the irradiation is negligible. What is the surface temperature of this spherical light bulb CD is a perpendicular bisector of chord AB and a chord through CD passes through the center of a circle. Find the diameter of the wheel. 24. George Seurat used a painting technique called Pointillism to add color to Sunday Afternoonon the Island of La Grande Jatte. In this technique, he placed tiny dots of paint next to eachother, rather than painting with smooth brushstrokes. Examine the piece and determine its mood.How has the mood or feeling of the artwork effected by the artist's choice of painting technique? What is the value of the missing angle in this quadrilateral?5667304360 What is the formula for margin of error?The triangles below are similar. Triangle A B C. Side A C is 10 and side A B is 5. Angle C is 30 degrees. Triangle D E F. Side E D is 7.5 and side D F is 25. Angle F is 30 degrees and angle E is 90 degrees. Which similarity statements describe the relationship between the two triangles? Check all that apply. What does the description of Ruth in this excerpt best reveal about her as acharacter?A. It shows that Ruth is generally unsatisfied with her marriage toWalter.B. It shows life has dealt Ruth a bad hand that she has played thebest she could.C. It reveals that Ruth puts the needs of others before her own needs.D. It indicates that Ruth is not very skilled at hiding her emotionsfrom others With what is the color green symbolically associated? List 5-10 things. The College Bookstore sells a unique calculator to college students. The demand for this calculator is constant at 20 units per day. The lead time for this calculator is variable at an average of 9 days with a standard deviation of 2 days. Compute the statistical reorder point that results in a 95 percent in-stock probability. Choose the closest answer.a. 182 unitsb. 226 unitsc. 246 unitsd. 26 unitse. 46 units if you divide two real numbers the quotient is always a real number The perimeter of a rectangle is 42 cm and the area is 80 cm. Write an equation to model the situation and find the dimensions of the rectangle. Vincent dissolves 6.5 g of bromic acid, HBrO3, to prepare 600.0 mL of solution. Calculate the concentration of the acid Vincent produced. Dietitians often work with groups of specific individuals. Examples of these include:A. School childrenB. Hospital patientsC. Construction workersD. Both A and B What is a conjugate acid-base pair?