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
kaheart [24]
3 years ago
11

The owner of a computer company claims that the proportion of defective computer chips produced at plant A is higher than the pr

oportion of defective chips produced by plant B. A quality control specialist takes a random sample of 80 chips from production at plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pB = the true proportion of defective chips from plant B. Which of the following is a correct statement about the conditions for this test?
A. The random condition is not met.
B. The 10% condition is not met.
C. The Large Counts Condition is not met.
D. All conditions for inference are met.
Mathematics
1 answer:
Furkat [3]3 years ago
3 0

Answer:

D. All conditions for inference are met.

Step-by-step explanation:

For the 10% condition :

x / n ; x = number of defective samples ; n = sample size

For Plant A :

x / n = 12 / 80 = 0.15 (> 0.10)

Plant B:

x / n = 10 / 90 = 0.11 (> 0.10)

The sample sizes are large enough ; n > 30

The questions stated that samples were chosen at random.

Hence, all conditions for inference are met.

You might be interested in
Can u solve both 20. and 22.<br><br> Geometry
SCORPION-xisa [38]

Hey there!!

(1) Both the angles sum up to be 180.

(2) Both the angles sum up to be 90

_________________

(1) 4x+5+8x-5=180

... 12x=180

... x= 180/12

... x = 15

________________

(2) 4z+3z+6=90

... 7z+6=90

... 7z=84

... z=84/7

... x=12

__________________

Hope it helps!


8 0
3 years ago
Help please!!!!! ASAPPPPPPPPPP
crimeas [40]
The answer is
-5/8+9/2=3 7/8 or 31/8
so you should put 31 in the green box

4 0
2 years ago
A point T on a segment with endpoints D (1, 4) and F (7, 1) partitions the segment in a 3:1 ratio. Find T.
velikii [3]

Step-by-step explanation:

given,

x1= 1 , x2= 7 , m1= 3

y1= 4 , y2= 1 , m2= 1

x=?

y=?

using section formula

x= (m2.x1 + m1.x2)/m1 + m2

x= find yourself

y= (m2.y1 + m1.y2) / m1 + m2

y= find yourself

5 0
2 years ago
Use technology or a z-score table to answer the question.
FinnZ [79.3K]

Answer:

C

Step-by-step explanation:

First we find the z-score.

z = (x - μ) / σ

z = (520 - 500) / 60

z = 0.33

Using a calculator or z-score table:

P(z < 0.33) = 0.6293

The probability is approximately 63%.  Answer C

6 0
3 years ago
Point m is the midpoint of kL. M(1,-1) and L(8,-7. What are the coordinates of point k?
Phoenix [80]

Answer: (-6, 5)

<u>Step-by-step explanation:</u>

Use the Midpoint Formula: \dfrac{(x_k, y_k)+(x_L,y_L)}{2}=(x_m, y_m)

Separate the x's and y's and solve them individually:

\dfrac{x_k+x_L}{2}=x_m\qquad \qquad \qquad \qquad\dfrac{y_k+y_L}{2}=y_m\\\\\\\dfrac{x_k+8}{2}=1\qquad \qquad \qquad \qquad \qquad \dfrac{y_k-7}{2}=-1\\\\\\x_k+8=2\qquad \qquad \qquad \qquad \qquad y_k-7=-2\\\\\\x_k\quad =-6 \qquad \qquad \qquad \qquad \qquad y_k\qquad =5

            So, the k-coordinate is (-6, 5)

3 0
3 years ago
Other questions:
  • How did u divide that
    9·1 answer
  • What is 15% of 375?
    12·2 answers
  • a truck carried 3 1/3 tons of sand, but lost 1/4 ton along the way. how many tons of sand were delivered?
    7·2 answers
  • Write 27 as a product of primes.<br> Use index notation where appropriate.
    6·2 answers
  • The median of the set of prime numbers between 8 and 54 is
    12·2 answers
  • Dont mind the blue numbers. Please help!​
    11·1 answer
  • The sum of 555 consecutive integers is 270270270. What is the second number in this sequence?
    12·1 answer
  • Calculate the circumference of this circle π3.14 radius= 36 in
    5·1 answer
  • EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER
    14·2 answers
  • Is 279,198 divisible by 4?<br><br> plzを助けて<br> Plz o tasukete<br><br> Help me plz
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!