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
An investment advisor believes that there is a 60% chance of making money by investing in a specific stock. If the stock makes m
inessss [21]

Answer:

\mathbf{ 0.6 \times 0.5 = 0.3 }

Step-by-step explanation:

Let M denote the event that the stock makes money and D denote the event that the stock pays dividends.

It is given that P(M) = 0.6

Observe that the two events M and D are not independent because if the stock doesn't make money then it will not pay dividends. Therefore the event D | M^{c} (D given M does not occur) is a null event, i.e

P(D|M^{c}) = 0

It is also given that,

P(D|M) = 0.5

Recall that : P(D|M) = \frac{P(D \cap M)}{P(M)}

Here, we are required to find P(D \cap M)

P(D \cap M) =P(D|M) \times P(M)= 0.5 \times 0.6 = 0.3

7 0
3 years ago
Mr. Moretti is making welcome bags to give to the 18 students in his homeroom on the first day of school he puts m mechanical pe
Mashcka [7]

Answer:

The total number of pencils is 6

Step-by-step explanation:

According to the given scenario, the computation of the total number of pencils is as follows:

There are 18 students

And let us assume there is m mechanical pencils that put in each bag

also he put twice of the regular pencil

So if he put the 3 mechanical pencil

So, the total number of pencils is

= 3 × 2

= 6

As it twice of the regular pencil

hence, the  total number of pencils is 6

5 0
2 years ago
The radius of a solid hemisphere is 2r. Find its total surface area
Musya8 [376]

Answer:

Radius= 2r

Step-by-step explanation:

Surface area of hemisphere

=2 x 22/7 x (2r)^2

=44/7 x 4 r^2

=174/7 r^2

=25.14 r^2

5 0
3 years ago
Which of the following inequalities matches the graph? (1 point)
pickupchik [31]

Answer:

there were no inequalities to choose from but I believe the answer is y ≤ 4x

Step-by-step explanation:

4 0
3 years ago
Distributive property
lorasvet [3.4K]

So what is the question?

6 0
3 years ago
Other questions:
  • Jolon used the slope-intercept form to write the equation of a line with slope 3 that passes through the point (5, –2). His work
    10·2 answers
  • Please help with <br><br> 0.36y=18
    9·2 answers
  • Use the six steps in the "Blueprint for Problem Solving" to solve the following word problem. You may recognize the solution
    5·1 answer
  • Which is the correct step below for using the grouping method to factor the following polynomial? 8x - 6 - 12x2 + 9x
    9·2 answers
  • CLAY A potter crafts a triangular prism out of clay.
    14·1 answer
  • Penicillin is ordered for a child weighing 35 pounds. The average dose for an adult is 360 mg. The child will receive ________ m
    6·1 answer
  • 1. What is the circumference of the circle below? Use 3.14 for pi and Round
    7·2 answers
  • What is the equation of 21 less than 11 times a number results in seven times a number decreased by 29 what is the number
    6·1 answer
  • What is the main function of the peripheral nervous system?
    7·2 answers
  • Please help would appreciate so much​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!