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
irina1246 [14]
3 years ago
10

A design engineer wants to construct a sample mean chart for controlling the service life of a halogen headlamp his company prod

uces. He knows from numerous previous samples that when this service life is in control it is normally distributed with a mean of 500 hours and a standard deviation of 20 hours. On three recent production batches, he tested service life on random samples of four headlamps, with the results?
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

Answer:

1 495 500 505 500

2 525 515 505 515

3 470 480 460 470

Step-by-step explanation:

Suppose to be sample are

  • 495 500 505 500
  • 525 515 505 515
  • 470 480 460 470              

In the given sample if sample 3 is difficult to control .Because engineer wants to construct a sample mean controlling the service to his company produces.In sample set first two sets have continuous four headlamps but in third it is difficult to handle the control.

You might be interested in
Caroline’s baby sister weighs 3,415 grams. What is her weight in kilograms?
krek1111 [17]

Answer:

C.3.415 kg

Step-by-step explanation:

Put first number in ones place.Th rest as follows

4 0
3 years ago
In a statistics class, 10 scores were randomly selected with the following results: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66.What
Lunna [17]

Answer:

We conclude that the lower limit of a box-and-whiskers display is 65.

We conclude that the upper limit of a box-and-whiskers display is 77.

Step-by-step explanation:

Definition: A box-and-whisker plot or boxplot is a diagram based on the five-number summarytext annotation indicator of a data set.

In a statistics class, 10 scores were randomly selected with the following results: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66.

We conclude that the lower limit of a box-and-whiskers display is 65.

We conclude that the upper limit of a box-and-whiskers display is 77.

3 0
2 years ago
Put the following equation of a line into slope-intercept form, simplifying all
Fudgin [204]
4y=5x+4
Divid by 4 to make slop intercept form
Y=5/4y +1
Slop =5/4
5 0
3 years ago
Read 2 more answers
How many tons are equal to 36,000 pounds?
patriot [66]

Hello There! I'll be glad to help you! :0

Question:

How many tons are equal to 36,000 pounds?

Answer:

<h2><u><em>18 tons </em></u></h2>

Step-by-step explanation:

<em>To convert a pound measurement to a ton measurement, divide the weight by the conversion ratio.</em>

<em />

<em>Since one ton is equal to 2,000 pounds, you can use this simple formula to convert:</em>

<em />

<em>tons = pounds ÷ 2,000</em>

<em>The weight in tons is equal to the pounds divided by 2,000.</em>

<em />

<em>And you could multiply 2,000 by 18 and get the answer 36,000</em>

<em />

<em />

Hope This Helps you!

Have an Amazing day!

<h2><u>If you have any questions please ask! :]</u></h2>
8 0
2 years ago
Read 2 more answers
Math Test Helpppppp!!!!!!!!
soldier1979 [14.2K]
Simple problem:

When simplifying 3(x-6) they subtracted 3 instead of multiplied by 3.
3(x-6) should be 3x-18.
Now when you simplify:
3x-18+4x+12-6x
Which is x -6 =0
Or x =6
3 0
2 years ago
Other questions:
  • Let f(x) represent a function. Which descriptions match the given transformations? Drag and drop the answers into the boxes.  
    14·2 answers
  • Quadrilateral OPQR is inscribed inside a circle as shown below. Write a proof showing that angles O and Q are supplementary. It
    8·1 answer
  • 24Is60%ofwhat number
    15·2 answers
  • Factorise x squared - 12x + 36
    14·1 answer
  • Eight sided dice can be described as two square based pyramids stuck together at
    13·1 answer
  • What is 3 made into a fraction
    12·2 answers
  • The response time for ski patrol rescue responders is measured by the length of time from when the radio call is finished and wh
    7·1 answer
  • I try to find it but I could PLEASE help I’ll say the answer when I’m done
    10·1 answer
  • He can run 5 miles in 50 minutes what is the unit rate that he runs in one minute ?
    5·1 answer
  • Given: m&lt;4 + m&lt;7 = 180°<br> Prove: c ll d<br> I need the statements and reasons
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!