1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lbvjy [14]
3 years ago
15

The following time series shows the sales of a clothing store over a 10-week period. Compute the mean square error (MSE) for a 4

-week moving average forecast for the time series. Week Sales($1,000s) 1 15 2 16 3 19 4 18 5 19 6 20 7 19 8 22 9 15 10 21 Group of answer choices 21.50 7.67 15.00 16.90 2.33
Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0

Answer:

7.67

Step-by-step explanation:

Given the data :

Week_sales_Forecast ___|error|_ |error|²

1 _____15

2 ____ 16

3 ____ 19

4 ____ 18

5 ____ 19 ____ 17 _______ 2____4

6 ____ 20 ___ 18 ________2____4

7 ____ 19 ____19 ________0____0

8 ___ 22 ____ 19 ________3____9

9 ___ 15 ____ 20 ________5___ 25

10 __ 21 _____19 ________ 2 ___ 4

Mean squared error :

(4 + 4 + 0 + 9 + 25 + 4) / 6

= 46 / 6

= 7.666

= 7.67

Whitepunk [10]3 years ago
8 0

Answer:

7.67

Step-by-step explanation:

Given the data :

Week_sales_Forecast ___|error|_ |error|²

1 _____15

2 ____ 16

3 ____ 19

4 ____ 18

5 ____ 19 ____ 17 _______ 2____4

6 ____ 20 ___ 18 ________2____4

7 ____ 19 ____19 ________0____0

8 ___ 22 ____ 19 ________3____9

9 ___ 15 ____ 20 ________5___ 25

10 __ 21 _____19 ________ 2 ___ 4

Mean squared error :

(4 + 4 + 0 + 9 + 25 + 4) / 6

= 46 / 6

= 7.666

= 7.67

You might be interested in
A number is multiplied by 3. If 3 is subtracted from the product you get 24.
vladimir1956 [14]
Nine is the answer cuz it equals 27 then subtract 2 equals 24
3 0
3 years ago
Read 2 more answers
HELP!! URGENT!! GIVING AWAY 50 POINTS to correct answer!!
NNADVOKAT [17]

The figure seems like its a parallelogram.

In a parallelogram :
Opposite sides are equal and
Opposite angles are equal
Hence, The side opposite to 9in. is equal to 9in. and the side opposite to 10in. is equal to 10in.

Area of the figure =b×h
= 8×10
=80in.sq.

7 0
3 years ago
Read 2 more answers
Solve for y: 3d = 7y + 5
pogonyaev

Answer:

d = \frac{7y+5}{3}

Step by step explanation:

3d = 7y+5

<em>Divide both sides by 3</em>

<em />\frac{3d}{3}<em>= </em>\frac{7y}{3}+ \frac{5}{3}

<em>Simplify</em>

\frac{7y+5}{3}

7 0
2 years ago
Movie a is 2 2/3 long while movie b is 5 3/4 long. How much longer was movie b than movie a?
bixtya [17]
5 3/4- 2 2/3= 3.083~
Movie B was 3.083~ *units* longer
3 0
3 years ago
Simplify by combining like terms:<br> 5a + 2b - 3a + 4<br><br><br> Help please
disa [49]

Answer:

2a + 2b + 4

Step-by-step explanation:

5a + 2b + -3a + 4

5a + -3a

2a + 2b + 4

4 0
3 years ago
Read 2 more answers
Other questions:
  • A number line is numbered in tenths describe where you would plot 87.35 squared
    12·1 answer
  • Solve the inequality and write down the solution in interval notation x(x-3)(x+1)&lt;0
    6·1 answer
  • The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.
    7·2 answers
  • Which of the following is a linear equation<br>x+y-2<br>2x+5=11<br>15<br><br>​
    5·1 answer
  • An equilaterial triangle has side lengths of 11 cm. The triangle is enlarged using a scale factor of 4. What is the length of on
    8·1 answer
  • Please help me find the answer
    7·1 answer
  • Can someone help me please.
    5·1 answer
  • Shawn said that in standard notation,
    7·1 answer
  • Find the distance between the points
    7·1 answer
  • Look at the picture I need your help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!