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
kvasek [131]
3 years ago
15

Andrew took a random sample of 10 decorated ceramic cups from a population of 100 cups to determine the sample mean number of de

fective cups. Barbara took another random sample of 10 cups from the same population for the same task. What would happen if Andrew and Barbara both choose a sample size of 20? The difference of their sample means is likely to
Mathematics
2 answers:
fgiga [73]3 years ago
4 0
He difference between their sample means would likely stay the same.

I hope this help
Sonbull [250]3 years ago
3 0

Answer:

Step-by-step explanation:

Given that Andrew took a random sample of 10 decorated ceramic cups from a population of 100 cups to determine the sample mean number of defective cups. Barbara took another random sample of 10 cups from the same population for the same task.

if Andrew and Barbara both choose a sample size of 20, then the difference may be more accurate.

Because 5 out of 10 and 4 out of 10 say if both have taken then the difference would be 1.

But in case from 20 cups 11 and 8 were drawn the difference would be

3.  Thus if sample size increases difference may slightly vary but proportion would tend to be the same.

You might be interested in
Solve for x if sqrt (3x-8) + 1 = sqrt (x+5)
In-s [12.5K]

The solution of x in the given expression \mathbf{\sqrt{(3x-8)}+1 = \sqrt{(x+5)}} is 4. However, if it is \mathbf{\sqrt{(3x-8)+1} = \sqrt{(x+5)}}, it is 6.

<h3>What is the solution to algebraic expression?</h3>

The solution to the given algebra expression involving surds can be seen in the steps below.

Given that:

\mathbf{\sqrt{(3x-8)}+1 = \sqrt{(x+5)}}

Remove the square roots, we have:

12x - 32 = 4x² - 48x + 144

Solving the quadratic equation at the RHS and equating it to LHS, we have:

x = 11, x = 4

Verifying the solutions by replacing the value of x with the given equation:

  • x = 11 False
  • x = 4 True

Therefore, we can conclude that the value of x = 4

NOTE:

Given that:

\mathbf{\sqrt{(3x-8+1)} = \sqrt{(x+5)}}

Square both sides

3x - 7 = x +5

Solve for x

3x - x = 5 + 7

2x = 12

x = 6

Learn more about solving to algebraic expressions here:

brainly.com/question/4344214

#SPJ1

5 0
2 years ago
A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available.
True [87]

Answer:

hindi ko po maintin dihan sorryyyyyyyyyy

5 0
3 years ago
In order to prove that traingle ADC is congruent to triangle ABC by SAS, we would need to show that
IRISSAK [1]

Answer:

D) Angle DAC is congruent to Angle BAC

Step-by-step explanation:

Given:

The triangles ABC and ADC are congruent by SAS postulate.

SAS postulate means two corresponding sides are congruent to each other and the included pair of angles are also congruent to each other.

From the figure, consider the triangles ABC and ADC.

AB = AD  (Given)

AC = AC ( Reflexive property. Side AC is a common side to both triangles)

Now, the pair of angles included between these two pair of sides are angle BAC and angle DAC.

So, in order to prove the two triangles congruent by SAS postulate, we need to prove angle DAC congruent to angle BAC. Therefore, the correct option is option D.

8 0
3 years ago
What is the 10th term in this geometric sequence?<br>2,4, 8,16,.....​
Alisiya [41]

Answer:

1024

Step-by-step explanation:

you can plug 10 to the explicit formula. f(n)= a times r to the power of n minus 1. A is the first term, r is the common ratio and n is the nth term. 2 times 2 to the power of 10 minus 1. 2 times 2 to the power of 9 is 1024. Hope this helps!

7 0
2 years ago
sharon drops a rubber ball from a height of 160 feet every bounce sends the ball half as high as it was before what is the total
Elanso [62]

Answer:

10 feet.

Step-by-step explanation:

First time: 160/2=80.

Second time: 80/2=40.

Third time: 40/2=20.

Fourth time: 20/2=10.

Boom.

5 0
3 years ago
Other questions:
  • An isosceles triangle has angle measures 55°, 55°, and 70°. The side across from the 80° angle is 10 inches long. How long are t
    12·2 answers
  • Calculating probability.
    14·1 answer
  • What is the length of the missing side FP? Round the answer to the nearest tenth please.
    6·2 answers
  • Solve the equation:<br>x-7=18
    9·1 answer
  • What is the answer to -7+3
    10·2 answers
  • You want to save $20,000 to buy a new boat. You deposit $12,500 in an account earning 6.5% simple interest. After how long will
    11·1 answer
  • What is the volume of the cylinder? Express the answer in terms of .
    7·2 answers
  • What is the value of i5 <br> 1 <br> −i <br> i <br>−1
    14·1 answer
  • 610 people go on a coach trip each coach can hold 55 people how many coaches are needed
    9·2 answers
  • Disebuah perpustakaan, buku-buku disusun rapi didalam lemari dengan membentuk deret aritmatika. Pada sebuah lemari terdapat 6 su
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!