The numbers of copies of a college textbook sold quarterly over the past four years are: Since the time series has trend and seasonal pattern, to forecast the quarterly sales of the textbook, the following regression equation was found: stack y t with overparenthesis on top equals 2120 space minus 620 space Q t r 1 space minus space 1320 space Q t r 2 space plus space 290 space Q t r 3 space plus space 24 space t , where Q t r 1 , Q t r 2and Q t r 3 are dummy variables corresponding to Quarters 1, 2 and 3, and t = time period. The sales forecast for Quarter 3 of the next year is

Answers

Answer 1

Answer:

The predicted sales for the 4th quarter next year are 2168

Step-by-step explanation:

We formulate the given equation

Yt= 2120 - 620 Qtr 1 t -1320 Qtr 2 t + 290 Q tr3 t + 24 t

Taking the quarter 1 , 2 and 3 to be dummy variable the predicted sales for the 4th qtr are

Now put the values for the corresponding time period as 1,2 and 3

Yt= 2120 - 620 Qtr 1(0) -1320 Qtr 2(0) + 290 Q tr3 (0)  + 24 (1)

Y(1)= 2120 + 24 = 2144   ( for year =1)

Y(2)= 2120+ 48= 2168    ( for year =2)

Y(3)= 2120 + 72= 2192   ( for year =3)

where t is the number of years.

So for the next year the fourth quarter sales are predicted to be 2168.

Answer 2

The sales forecast for Quarter 3 of the next year is 2192.

What is a sales forecast?

It should be noted that a sales forecast simply means an expression for the expected sales revenue.

In this case, the sales forecast for Quarter 3 of the next year will be calculated thus:

= 2120 + 24(3)

= 2120 + 72

= 2192

Therefore, sales forecast for Quarter 3 of the next year is 2192.

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Related Questions

HELP ME WILLING TO PAY AND HAVE DONE TO OTHERS!

Answers

f(0)=-4
f(-pie)=4
f(-3pie/4)=0

1.
Only one-fourth of Earth’s surface is land, but land constitutes over 99% of the Earth’s actual mass. Which sphere of the Earth does this statement describe?

biosphere

lithosphere

atmosphere

hydrosphere

Answers

Answer:

Lithosphere.

Step-by-step explanation:

Lithosphere is known for being the Earth's sphere ehre all rocks and types of land are included. Therefore, if land constitutes over 99% of the Earth's actual mass, then the statement is refering to the Lithosphere.

In this question, you are asked to specify the sphere of the earth described in the sentence

The sphere of the earth described in the sentence is lithosphere.

Lithosphere is the sphere of the earth which consists of land.

Biosphere is the portion of the earth which constitutes lives. Living organisms live in this part of the earth.

Atmosphere consist of the gaseous part of the earth.

Hydrosphere is the portion of the earth that consist of water either fresh or salt water

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What is the number of the parking space covered by the car?

Answers

Answer:

87

Step-by-step explanation:

flip the picture upside down.

To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical
mass is dropped onto the mat from a height of 1 m above the mat. During the impact,
the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to
only 4 cm thick.

a. How much kinetic energy does the cylinder have at the instant just before it
contacts the mat?

b. How much work does the mat do to stop the fall of the cylinder?

c. What average vertical force does the mat exert on the cylinder during the impact,
from contact until the cylinder’s vertical velocity is zero?

Answers

Answer:

A)196J

B)-208J

C)3467J

Step-by-step explanation:

We are given that a 20 kg cylindrical  mass is dropped onto the mat from a height of 1 m above the mat. During the impact,  the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to  only 4 cm thick.

So, The Mat gets compressed by : 10cm - 4 cm = 6 cm=0.06 m

a)

Using Conservations of energy

Potential energy at the top = Kinetic energy at the point before touching the surface

Kinetic energy = mgh= [tex]20 \times 9.8 \times 1 = 196 J[/tex]

b)

Work done  by the mat do to stop the fall of the cylinder =[tex]-mg(h+0.06)=-20 \times 9.8(1+0.06)=-208 J[/tex]

C)

Work done=[tex]\text{Average force} \times \text{ Compression of mat}[/tex]

[tex]208=F \times 0.06[/tex]

F=3467J

Friday’s high temperature was −1°C. The low temperature was −5°C. What was the difference between the high and low temperatures?

Answers

Answer:

-4C

Step-by-step explanation:

-1 (-4) = -5


A television with a price of $300 is to be purchased
with an initial payment of $60 and weekly payments
of $30. Which of the following equations can be used
to find the number of weekly payments, w, required
to complete the purchase, assuming there are no
taxes or fees?

Answers

Answer:

8 weeks

Step-by-step explanation:

300-60= 240

240/30= 8

URRRRRGGGGEEENNNNTTTTT!!!!!!

Answers

Step-by-step explanation:

Well you have to find two points on the line like points (0,2) and (2,-2)

Then you do y2-y1/x2-x1

You should be able to know what answer it is now!

Hope this helps <3

Celia writes the addition problem shown.she says she can tell which sum will be greater without adding.how does she know?

Answers

which is the problem

The sum of 5157 + 519 will be greater because she knows that 519 > 364.

What is summation?

A summation, also abbreviated as a sum, is the outcome of adding two or more numbers or quantities. Here are always an integer number of terms in a summation. There could be only two terms, but there could be one hundred, thousand, or a million. There are summations with an infinite set of parameters.

In another word, the summation is to add or subtract any two or more terms by doing that operation we will get a new result which could be big or small depending upon the number.

Let's say two sum

x + y and x + z

If we want to calculate which is bigger then we need to look to y and z since x is common in both.

If y > z then x + y will be bigger and if z > y then x + z will be bigger.

Given the sum,

8157 + 364 and 8157 + 519

Now since 519 > 364 so (8157 + 519 ) > (8157 + 364)

Hence "The sum of 5157 + 519 will be greater because she knows that 519 > 364".

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The given question doesn't have a numeric value, The numeric values are

8157 + 364 and 8157 + 519

is 1,569 divisible by 9

Answers

Answer:

Yes the answer is 179 remainder 3

Answer:

no

Step-by-step explanation:

hope this helped!

p.s it would be cool if you gave me brainliest.

solve this
- 7x - ( - 15y) - ( - 2x) + ( - 6y)​

Answers

Answer:

-7x+15y+2x-6y

-5x+9y

Step-by-step explanation:

Answer:

-7x - ( -15y ) - ( - 2x) + ( -6y )

=> -7x + 15y + 2x - 6y

=> ( -7x + 2x ) + (15y - 6y)

=> -5x + 9y

If my answer helped, kindly mark me as the brainliest!!

Thanks!!

describe the normal distribution shape in your own words. feel free to use examples that are normal or irregular. ​

Answers

Answer:  see below

Step-by-step explanation:

A normal distribution is shaped like a negative parabola  →  ∩

The midpoint of the parabola is the median and represents 50% of the data.

Therefore, there is equal distribution to the left and to the right of the 50% mark.

Answer:

Normal distributions are symmetric and the mean, medium, mode. The shape of used is a bell curve. We can also use normal distributions for the height, weight.

5
What are the coordinates of the image?
Rx-axis (-5, 3)

Answers

Answer:

Hey! The answer is (-5,-3)!!

Step-by-step explanation:

Select all polynomial expressions that are equivalent to 6x^4+4x^3-7x^2+5x+8

Answers

Complete question is;

Select all polynomial expressions that are equivalent to 6x⁴ + 4x³ – 7x² + 5x + 8.

A. 16x^(10)

B. 6x^(5) + 4x⁴ – 7x³ + 5x² + 8x

C. 6x⁴ + 4x³ - 7x² + 5x + 8

D. 8 + 5x + 7x² - 4x³ + 6x⁴

E. 8 + 5x – 7x² + 4x³ + 6x⁴

Answer:

Options C & E

C. 6x⁴ + 4x³ - 7x² + 5x + 8

E. 8 + 5x – 7x² + 4x³ + 6x⁴

Step-by-step explanation:

To find the polynomial expressions that are equivalent to 6x⁴ + 4x³ – 7x² + 5x + 8 simply means that both polynomials must have identical signs, identical number of terms and identical terms.

Now, by inspection of tall the options, we can see that options C & E are equivalent to the initially given polynomial.

For option C: 6x⁴ + 4x³ - 7x² + 5x + 8

This expression is the exact same thing as what was given in the question.

For option E: 8 + 5x – 7x² + 4x³ + 6x⁴

Rearranging this gives;

6x⁴ + 4x³ - 7x² + 5x + 8

Again this is exactly the same expression given to us in the question.

Solve 2 2/5 - 1 1/2 .

Answers

Answer:

9/10

Step-by-step explanation:

2 2/5 - 1 1/2

Get a common denominator of 10

2 2/5 *2/2 =  2 4/10

1 1/2 *5/5 = 1 5/10

2 4/10 - 1 5/10

Borrow from the 2 as 10/10

1 + 10/10 +4/10   - 1 5/10

1 14/10 - 1 5/10

9/10

Please help
Write the equation of the line on the graph

Answers

Answer:

y = 3x

Step-by-step explanation:

There is a dot at (1,3)

The line also goes through (0,0)

The equation is of the form y = mx

b the y intercept is 0.

All we need to do is solve for m

when x = 1, y = 3

3 = m * 1

m = 3

Answer: y = 3x

two years ago, a car was valued at $24000. This year, the value of the car is $23160. What was the percent decrease in the value of the car

Answers

12.5 how he say the value of the car this year

Answer:

Step-by-step explanation:

idek

is this a linear or non linear function?

Answers

Answer:

Linear I believe.

Step-by-step explanation:

A bus makes 28 stops every 2 hours. How many stops does it make in 3 hours? in 4 hours?

Answers

Answer:

it make 42 stops in 3 hours and in 4 hour it would have made 56 stops in 4 hours

Step-by-Step

my explanation would be so you said 3 hours so take half of 28 and add 14 and 28 together would be 42 and in 4 hours it would have made 56 stops

How do you round 1.9046 to the nearest thousandth.

Answers

1.905

Six is greater than five so you add 1 to the nearest thousandths means to your left and that became 1.905

a line passes trough the point { 0, -3/2} and has a slope of 1/2. what is the equation of the line?
* awnsers in the picture *

Answers

Solutions: x=1.

Hope this helps!

Find the sum.

(-3.4k-7)+(3k+21)


Please and Thank You :)

Answers

Answer:

k=(n+3)/6

Step-by-step explanation:

algebra class but I think im wrong

y and z are whole numbers.
y< 70
Z<_60
Work out the largest possible value of y + z

Answers

Answer:

1

Step-by-step explanation:

It is a fraction with a whole number and proper fraction.​

Answers

That is a Mixed number. If that is what you wanted to know. I don’t really understand the question

if a sample of 25 students is taken from a population of 179 students the population variance o^2, is the variance of how many students' heights

Answers

Answer: 179

Step-by-step explanation:

The population variance cannot be determined solely from a sample, but the sample variance can provide an estimate of it based on the data collected from the sample.

The population variance ) represents the variance of the entire population. In this case, the population consists of 179 students. However, if we take a sample of 25 students from this population, the variance of this sample is called the sample variance

The sample variance ) is used to estimate the population variance ). It is calculated using the following formula:

The population variance  cannot be determined solely from a sample, but the sample variance () can provide an estimate of it based on the data collected from the sample.

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Jamal has some baseball cards, and his brother has 1/3 as many as Jamal. Together, they have 36. How many cards does Jamal have?

Answers

Answer:

27 cards

Step-by-step explanation:

We write the equation:

J + (1/3 x J) = 36

4/3 x J = 36

J = 36 x 3/4 = 27

Write in standard form (4x10)+(3x1)+(7x1/10+(6x1/100)

Answers

9514 1404 393

Answer:

  43.76

Step-by-step explanation:

Add up the terms:

  4×10 +3×1 +7×1/10 +6×1/100

  = 40 +3 +0.7 +0.06

  = 43.76

_____

If you're in a part of the world where "standard form" and "scientific notation" are the same thing, then this would be ...

  4.376×10¹

3. At an awards ceremony. 90 people are seated at 15 tables. If
there are the same number of people seated at each table, use
the ratio table to determine the number of people seated at each
table.

Answers

Answer:

5

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Question 7 of 10
If h(x) = (fºg)(x) and h(x) = Vx+5, find g(x) if f(x) = (x+2.
Answer here

Answers

Answer:

g(x) = x + 3

Step-by-step explanation:

A composite function is a function that is written inside another function which means substituting one function into another function.

Ex: (fоg)(x) is a composite function, where x of f(x) is substituted by g(x)

∵ h(x) = (fоg)(x)

∵ [tex]h(x)=\sqrt{x+5}[/tex]

∵ [tex]f(x)=\sqrt{x+2}[/tex]

→ Substitute x of f(x) by g(x)

∴  (fоg)(x) = [tex]\sqrt{g(x)+2}[/tex]

→ Equate (fоg)(x) by h(x)

∴ [tex]\sqrt{g(x)+2}=\sqrt{x+5}[/tex]

→ Cancel the roots from the two sides

∴ g(x) + 2 = x + 5

→ Subtract 2 from both sides

∴ g(x) + 2 - 2 = x + 5  - 2

g(x) = x + 3

Jason left home for school at 7:30 a.m. and arrived at school at 8:35 a.m. how long did​

Answers

The answer for this question will be 1hours 5 mins
Jason took 1 hour and 5 mins (or 65 mins) to travel from Home to School

Help me solve this what is 3 divided by 4.236

Answers

Answer:

3/4.236=0.70

Step-by-step explanation:

0.70 percent is the answer hope this helped
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