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
Mice21 [21]
3 years ago
13

In a study of a particular brand of laptop computer, one group of 9 batteries lasted an average of 17.8 hours before needing rec

harging, and a second group of 11 batteries lasted an average of 18.1 hours. The difference between the two groups was found to be statistically significant. Are the results practically significant? Why or why not?
Yes, because the same brand of computer was used for all of the tests.
Yes, because results that are statistically significant are also practically significant.
No, because the 0.3 hour difference in battery life was small.
No, because there were more batteries in the second group.
Mathematics
2 answers:
Elenna [48]3 years ago
8 0

Answer:

<h2>No, because there were more batteries in the second group.</h2>

Step-by-step explanation:

Practically significance refers to the importance and impact results have in real life, not in a experiment.

The fact that hours change don't mean that have significance in a practical way, because the comparison between groups is not equal due to the differences between the amount of batteries tested. So, the different hours can be implied by the different number of batteries, because the average as a statistical measure changes when the number of elements is different.

Therefore, that difference between groups cannot ensure a practical significance.

german3 years ago
5 0
Yes because the results that are statistically significant are also practically significant
You might be interested in
Do you wana be friends im 8 but on my proth im 13 can you sud to my channel on you tube plzzzz
Kobotan [32]

Answer:

Fraction: 3/10

Decimal: 0.3

Percentage: 30%

Step-by-step explanation:

6 0
3 years ago
What is the leading coefficient of the polynomial? 5x² + 8x³ +4 - 6x² – 3x5​
Orlov [11]

Answer:

In polynomial function f(x) = 5x² + 2x³ + 4 the leading coefficient is 5.

The leading coefficient of a polynomial is the coefficient of the leading term 5x².

Step-by-step explanation:

6 0
2 years ago
Triangle DEF is rotated 180 degrees about the origin to form triangle D'E'F'.What are the coordinates of the vertices of triangl
kvv77 [185]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
If a+b=2x-2 and a-b=4x-8
spin [16.1K]
What are you looking for? looking for x a or b?
4 0
3 years ago
JoAnn works in a publicity office at the state university. She is paid
sleet_krkn [62]
JoAnn works 43 hrs week.
3 0
3 years ago
Read 2 more answers
Other questions:
  • A closet contains 10 pairs of shoes. if 8 shoes are randomly selected, what is the probability that there will be
    14·1 answer
  • A cylinder has a radius of 2 meters and a height of 10 meters. What is the volume of the cylinder? Cylinder V = Bh 1. Write the
    14·1 answer
  • Simplify 90/105. show work.
    7·1 answer
  • identify the slope of each line a: b: c: d: pls
    13·1 answer
  • What is the surface area of this square pyramid?
    8·1 answer
  • Given the equation: 5m + 3 = 3m - 7, what is the value of m? pls will mark Brainliest
    12·2 answers
  • DO NOT SEND ME LINKS OR PDFS I WILL REPORT ANSWER CORRECTLY TO GET BRAINLIEST
    6·1 answer
  • 4 times 2 1/8 mixed number in simpileest form
    11·2 answers
  • A sociologist recorded the estimated life expectancies of women born in Center City. Use the data from women born in 1970 and 20
    9·1 answer
  • DOES ANYONE KNOW THE ANSWER ???? Please I can’t fail this test !
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!