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
Zinaida [17]
3 years ago
9

Lockheed Martin, the defense contractor designs and build communication satellite systems to be used by the U.S. military. Becau

se of the very high cost the company performs numerous test on every component. These test tend to extend the component assembly time. Suppose the time required to construct and test (called build time) a particular component is thought to be normally distributed, with a mean equal to 45 hours and a standard deviation equal to 6.75 hours. To keep the assembly flow moving on schedule, this component needs to have a build time between 37.5 and 54 hours. Find the propability that the bulid time will be such that assembly will stay on schedule.

Mathematics
1 answer:
Ray Of Light [21]3 years ago
5 0

Answer:

  p(on schedule) ≈ 0.7755

Step-by-step explanation:

A suitable probability calculator can show you this answer.

_____

The z-values corresponding to the build time limits are ...

  z = (37.5 -45)/6.75 ≈ -1.1111

  z = (54 -45)/6.75 ≈ 1.3333

You can look these up in a suitable CDF table and find the difference between the values you find. That will be about ...

  0.90879 -0.13326 = 0.77553

The probability assembly will stay on schedule is about 78%.

You might be interested in
How do i solve equations by substitution?
r-ruslan [8.4K]
Just doing one! Here's my problem:    x-y-11  x-3y=1

So when you subsitute everything it should look like this: 1y-11-3y=1 (There needs to be a one in front of the y because it's just always been there. they don't always put it in the eqation.)  You need to + the 11 and you have to do that to each side. So... 1y-11-3=1
                                                                                                                +11    +11
Now it should look like this: 1y-3y=12
Combine the 1y and -3y to get -4y=12      Last step is divide -4y and 12 by 4  . Answer is y=3
4 0
3 years ago
Wut answer to 2q×2q×2q×2q×2q
tankabanditka [31]

Answer:

32q5

Step-by-step explanation:

2x2x2x2x2= 32 qxqxqxqxq=q5

6 0
3 years ago
0.2x - 1 = -1<br> Fndndndnddsmsmsskaalamakaksnsndnx c cncjxmdnd
Sedaia [141]

Answer:

0.2

Step-by-step explanation:

6 0
3 years ago
Simplify :<br>(a+b)²<br>Thanks ​
Eddi Din [679]

Answer:

(a+b)(a+b)

=a^2 + ab + ab + b^2

=a^2 + 2ab + b^2

6 0
2 years ago
Read 2 more answers
A garden in the shape of a right triangle is bordered on one side by a brick wall, on another side by a wooden fence, and on the
MAVERICK [17]
Let
x-----> the measure of the angle formed by the wooden fence and grass

we know that
in a right triangle
tan x=opposite side angle x/adjacent side angle x
opposite side angle x=13 ft
adjacent side angle x=21 ft
so
tan x=13/21x=arc tan (13/21)-----> x=31.76°------> x=32°

the answer is
32 degrees
3 0
3 years ago
Read 2 more answers
Other questions:
  • If i multiple 5460 and 12 and then divide 65520 and 54 and I get 1221 what at would be my best estimate
    9·2 answers
  • A student is saving money to buy a video game. The student currently has $20 and plans to save $10 every month. Write a function
    15·2 answers
  • A number that is multiplied by itself to form a product is a square root of that product.
    7·1 answer
  • What is the surface area of a rectangle with the base 10 and the height 15
    13·2 answers
  • Need help with number 3
    12·2 answers
  • A honeybee sitting on a tulip wanted to fly to a daffodil located 100 meters due east. Although the honeybee flew in a straight
    11·1 answer
  • Sandra has 28 fish in her water garden. Twenty-two of her fish are
    10·2 answers
  • Please help me to finish the table! D:
    5·1 answer
  • Given the equation 5x + 3y = 15, which statement is true?
    15·1 answer
  • Round 1749-32848976 to the nearest whole number.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!