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
givi [52]
3 years ago
15

We wish to study the quality of our production line. We take a random sample of 1000 widgets from our line. A quality rating was

determined for each of the 1000 widgets, and the average quality rating in the sample was 4. The sample standard deviation was 0.5. Also, 6 of the 1000 widgets were found to be defective.
Estimate the average quality rating for widgets from our production line, and include the uncertainty in this estimate in the form, a ± b.
Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer:

Average quality rating was 4.54+-0.00549

You might be interested in
Can someone help me on this plzzz
choli [55]

Answer:

b=15

How I got it:

32 + (7x4) = 32 + 28 = 60

60 divided by 4 = 15

Checking:

15 - 7 = 8

8 x 4 = 32

32 = 32

<em>You can tell b = 15 is the correct answer.</em>

3 0
3 years ago
What is the midpoint of the line segment that joins (6-2) and (,5)
PIT_PIT [208]

Answer:

Step-by-step explanation:

X=(6,-2)

Y=(0,5)

m

3 0
2 years ago
Please someone help me please!I'm struggling and I'll give extra point's!
alukav5142 [94]

Answer:

The x variable has an exponent of 2

Step-by-step explanation:

To be a linear equation, the highest power must be 1 on the variables

2x^2 +y =7 is quadratic since x^2 has a power of 2

3 0
3 years ago
7-(-12)=7+(-12)=-5 describe and correct the error in finding the difference 7-(-12)
valina [46]

Answer:

7 - (-12) = 7 + 12 = 19

Step-by-step explanation:

- (-12) is a double negative which means that the minus signs cancel out causing it to to be a positive 12

5 is not the answer because 7 + 12 is 19

3 0
3 years ago
Read 2 more answers
one afternoon kassim's sandwich shop sells 15 sandwiches in 45 minutes if the shop continues to sell sandwiches at the same rate
Bumek [7]
60 sandwiches in 3 hours.
5 0
3 years ago
Other questions:
  • What number is 100,000,000 more than 5,438,724,022
    11·1 answer
  • one day a toy store sold 3 xylophones and 3 yo-yos for $33. another day it sells 2 xylophones and 1 yo yo for $19. equations for
    10·1 answer
  • Dan had 15 cups<br> Of apple juice he wanted to add 6 oz how much would he have in the end?
    10·1 answer
  • LOOK AT PICTURE!! PLEASSEEEE HELP! (the one about the quadrilateral)
    12·2 answers
  • Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95%
    9·1 answer
  • .Find the area of the square park whose perimeter is 120m.
    6·1 answer
  • What are the first 10 prime Numbers and how
    9·1 answer
  • Please help meeee with this question<br>​
    7·2 answers
  • Please help due in an hour!!!<br>​
    8·2 answers
  • - Andy wants to rent a one-bedroom apartment in Green Acres. The apartment has a monthly rent of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!