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
xz_007 [3.2K]
2 years ago
13

A scientist wants to know if there is a meaningful difference between two groups of gels that grow bacteria. He randomly selects

five gels from each group, and counts the number of bacteria spots on each gel:
Group A: 9, 12, 13, 14, 17



Group B: 6, 5, 8, 13, 8



Is there a meaningful difference between the two groups? Show all calculations that lead to your answer.
Mathematics
1 answer:
Nimfa-mama [501]2 years ago
3 0

The difference between the numbers of group A and group B will be 3, 1, 1, 3 and -1, 3, 5, -5. Then there is no meaningful difference between the two groups.

<h3>What is subtraction?</h3>

It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.

A scientist wants to know if there is a meaningful difference between two groups of gels that grow bacteria. He randomly selects five gels from each group, and counts the number of bacteria spots on each gel:

Group A: 9, 12, 13, 14, 17

The difference between the numbers will be given below.

3, 1, 1, 3

Group B: 6, 5, 8, 13, 8

The difference between the numbers will be given below.

-1, 3, 5, -5

There is no meaningful difference between the two groups.

More about the subtraction link is given below.

brainly.com/question/4319655

#SPJ1

You might be interested in
Please I have my final now can someone help me with this fast
Mariana [72]

Answer:

option B

Step-by-step explanation:

Given :

y = \frac{2}{3}x + 3\\\\y = \frac{5}{2}x + \frac{7}{2}\\\\

Step 1 : simplify the equation :

3y = 2x + 9\\\\2y = 5x + 7\\

Step 2: Arrange the terms :

2x - 3y = - 9\\\\5x -2 y = -7

Step 3 : Solve for x and y :

                                2x - 3y = - 9 ------ ( 1 )

                                5x - 2y = - 7 --------- ( 2 )

                              _____________________

              ( 1 ) x 5 => 10x - 15y = - 45    ---------- (3 )

              ( 2) x 2 => 10x - 4y = - 14    ----------- (4 )

                             _______________________              

           ( 3 ) - ( 4 ) =>  0x - 11y = - 31

                                    - 11 y = - 31

                                        y = \frac{31}{11}

              Substitute y in ( 1 ) :

                     2x - 3y = - 9

                     2x - 3 (\frac{31}{11}) = - 9\\\\2x = -9 + 3(\frac{31}{11})\\\\2x = - 9 + \frac{93}{11}\\\\2x = \frac{-99 + 93}{11} \\\\2x = \frac{-6}{11} \\\\x = \frac{-6}{2 \times 11} = -\frac{3}{11}

Therefore the solution to the sytem is ( - \frac{3}{11} , \frac{31}{11})

The solution of the system of equation is a point which lies

on the both the lines.

Option A : False ,  It says the solution lies above one of the given line.

               But the solution of the system of equation always lies on

                both the line.

                     

Option B : True , says the solution is a point on the coordinate plane.

Option C : False, because if the solution is on the x-axis , then

                  the y coordinate in the solution would be zero.

                   But it  is not zero.

Option D : False , the solution is the point where both the lines intersect.

8 0
3 years ago
8
Dmitry [639]
415+86+12(2+5) first start by multiplying 12 and 2 and you will get 24 then multiply 12 and 5 and you get 60 so 415+86+24+60=585
4 0
2 years ago
The graph of r = -3 + 5cos(theta) is symmetric about the __________.
bonufazy [111]

Answer: B

Step-by-step explanation:

X axis only

5 0
3 years ago
Read 2 more answers
What’s the LCM and GCF of 14 and 22
lozanna [386]
LCM of 14 and 22 is 154, and the GCF is 2
6 0
4 years ago
Read 2 more answers
When graphed, will the line x - 2y = 6 be
kumpel [21]

Answer:

Step-by-step explanation:

Slope of x-2y=6 is ½.

Slope of line through (5,2) and (3,6) = (6-2)/(3-5) = -2

The two slopes are negative reciprocals of each other (i.e., their product is -1), so the two lines are perpendicular.

8 0
3 years ago
Other questions:
  • URGENT!! HELP! 25 POINTS FOR THESE QUESTIONS!
    6·1 answer
  • The manager of a gas station has observed that the times required by drivers to fill their car's tank and pay are quite variable
    13·2 answers
  • you invest $1000 in an account at 2.5% per year simple interest. How much will you have in the account at the beginning of the 4
    5·1 answer
  • 20 POINTS 52 + 22 the thing is that it's supposed to be 5 to the second power and 2 to the second power
    13·1 answer
  • What is 16/5 per hour
    11·1 answer
  • For the differential equation y(n)+p1(t)y(n−1)+ ... +pn(t)y=0 with solutions y1, ..., yn Abel's formula for the Wronskian is W(y
    5·1 answer
  • What is the slope of the line that passes through the points (-9,10) and (21,15)
    5·2 answers
  • The art club has a goal to raise at least $500 by selling paintings to the student body for $15 each. They have already spent $7
    9·1 answer
  • Which two expressions are equivalent to 20 + 48 ?
    11·1 answer
  • What would be the coordinates of point A given a dilation of scale factor 1/2 about the center of the image?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!