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
Dima020 [189]
2 years ago
6

Listed below is the amount of commissions earned last month for the eight members of the sales staff at Best Electronics. Calcul

ate the coefficient of skewness using both methods. Hint: Use of a spreadsheet will expedite the calculations. (Round your intermediate calculations and final answers to 3 decimal places.
980.9 1036.5 1099.5 1153.9 1409.0 1456.4 1718.4 1721.2

a. Pearson coefficient of skewness
b. Coefficient of skewness (using software)
Mathematics
1 answer:
Solnce55 [7]2 years ago
8 0

Answer:

0.438

Step-by-step explanation:

Given the data:

980.9, 1036.5, 1099.5, 1153.9, 1409.0, 1456.4, 1718.4, 1721.2

Coefficient of skewness:

3 * (mean - median) / standard deviation

The mean of the dataset :

Σ(X) / N ; N = sample size = 8

980.9+1036.5+1099.5+1153.9+1409.0+1456.4+1718.4+1721.2

= 10575.8 / 8

= 1321.975

Median :

980.9, 1036.5, 1099.5, 1153.9, 1409.0, 1456.4, 1718.4, 1721.2

1/2(n + 1)th term

1/2(9) = 4.5th term

(1153.9+1409.0) / 2

= 1281.45

Standard deviation:

Sqrt[Σ(X - mean)²/ (N - 1)]

Using calculator :

Standard deviation estimate of population = 277.882456

Coefficient of skewness :

3(1321.975 - 1281.45) / 277.882456

121.575 / 277.882456

= 0.4375051

= 0.4375

Using software excel :

Using excel's AVERAGE, MEDIAN and STDEV.P functions, the Coefficient of skewness can be obtained using the formula :

3 * (mean - median) / standard deviation

Coefficient of skewness obtained is 0.438

You might be interested in
Five cards are randomly selected without replacement from a standard deck of 52 playing cards. what is the probability of gettin
EastWind [94]
Ok so it is a standard deck of 52 cards. Theres 4 suites: Hearts, Spades, Clubs and Diamonds.
In each suite there is 13 cards: Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, and 2. The probability of you choosing 5 hearts is most likely to be 5/52.
3 0
3 years ago
If f(x) = x4 − x3 + x2 and g(x) = −x2, where x ≠ 0, what is (f ⁄g)(x)?
DerKrebs [107]
<span>The value of (f/g)(x) is determined by dividing the polynomial f(x) by the polynomial g(x) which is only equal to -x2. If we divide the first term of f(x), x4, with -x2, we arrived with an answer of -x2. For the second term, we arrive with the answer x. Similarly for the third term, we derive with an answer that is -1. Combining all the answers, we have -x2 + x - 1.</span>
4 0
3 years ago
Read 2 more answers
Eight friends share two pizzas equally. How much of a pizza does each friend get?
My name is Ann [436]
2/8.

You take two pizzas and divide them by 8.
3 0
3 years ago
Read 2 more answers
Which explanation best describes how to solve this problem?
Minchanka [31]
I believe it is a but i will double check and post ok

4 0
3 years ago
What is the mean for the data set 138 140 105 112 108 134 106 181 164 105
chubhunter [2.5K]

Answer:

the mean for the data set is 129.3

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do u multiply fractions?
    7·2 answers
  • I need help please<br> Thanks
    10·2 answers
  • Help me :))))) it’s a study guide.
    12·1 answer
  • Can a triangle have side lengths 3,13, and 7
    15·1 answer
  • What is the value of x in the equation<br> 8+4 = 2(x-1)?<br> 5<br> 11<br> 2<br> 13<br> 2.<br> 07
    13·1 answer
  • Which point lies in the solution set of the inequality 1/2(x+2)+3y&lt;8?
    9·1 answer
  • Make a line plot for each set of data.
    14·1 answer
  • Do please help (THESE ARE EXTRA WORDS BECAUSE BRAINLY WANTS SOME)
    6·1 answer
  • A boat goes 24 miles at a constant speed in 4 hours against a river current. It takes the boat 3 hours to go the same distance a
    7·2 answers
  • The Tropical Bay Resort complex is building a new irrigation system to ensure proper watering of their luscious landscape. Assum
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!