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
larisa [96]
3 years ago
15

The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution w

ith a mean of 250 square feet (ft^2) and a standard deviation of 2 ft^2 . To test this claim, a restaurant randomly selects 10 rolls of this aluminum foil and carefully measures the mean area to be ¯ = 249.6 ft2 .
Find the probability that the sample mean area is 249.6 ft^2 or less if the manufacturer’s claim is true.


0.4207


0.0228


0.5793


0.7364


0.2636
Mathematics
1 answer:
natali 33 [55]3 years ago
5 0

Answer: 0.4207

Step-by-step explanation:

Let \overline{x} be the sample mean area.

Given: Population mean : \mu=250 sq. feet

Standard deviation: \sigma=2 sq. feet

Sample size : n= 10

The probability that the sample mean area is 249.6 \text{ ft}^2 or less if the manufacturer’s claim is true.

P(\overline{x}

Required probability = 0.4207

You might be interested in
A software company sells an education version (e) and a commercial version (c) of its popular image editing software. During the
geniusboy [140]
Make 2 equations let x=150 y=600/180000  than plug and chug
4 0
3 years ago
Read 2 more answers
one foot of water column produces a pressure of 0.433psi . a gauge at the bottom of a water tower reads 44 psi. how high is the
Klio2033 [76]
The answer to the psi is 19.6
7 0
3 years ago
Write an algebraic representation of a dilation that has a scale factor of 0.45.
Dimas [21]

Answer:

(x, y) → (kx, ky)

Step-by-step explanation:

7 0
3 years ago
Solve the rational equation 1/n-4 - 2/n = 3/4-n
Leokris [45]

Answer:

n=4

Step-by-step explanation:

Given equation: \[\frac{1}{n-4}-\frac{2}{n}=\frac{3}{4-n}\]

Simplifying the Left Hand Side of the equation by taking the LCM of the denominator terms:

\[\frac{n}{n*(n-4)}-\frac{2*(n-4)}{n*(n-4)}=\frac{3}{4-n}\]

=> \[\frac{n - 2*(n-4)}{n*(n-4)}=\frac{3}{4-n}\]

=> \[\frac{n - 2n + 8}{n*(n-4)}=\frac{3}{4-n}\]

=> \[\frac{8 - n}{n*(n-4)}=\frac{3}{4-n}\]

=> \[(8-n)*(4-n) =n*(n-4)*3\]

=> \[n-8 =3n\]

=> \[2n =8\]

=> n = 4

5 0
3 years ago
Convert 90% to a decimal and round to the nearest thousandth place
EastWind [94]

Answer: .9

Step-by-step explanation:

You divide by 100 and get .9

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the discriminant of the following equation.<br><br> 4x2 + 12x + 9 = 0
    11·1 answer
  • A polygon has the following coordinates: A(-4,4), B(-1,1), C(-6,1). Find the length of BC.
    15·1 answer
  • Choose the expression that represents a cubic expression.
    7·2 answers
  • Jessie estiments the weight of her cat to be 10 pounds the actual weight of the cat is 13.75 pounds fine the percent error
    13·1 answer
  • Explain how you know 7(2 - 3n) and (2 - 3n) x 7 are equivalent expressions.​
    9·1 answer
  • Please help ill give brainliest answer!
    14·1 answer
  • The screen shot has all the info about the question so please help me thanks :)
    12·2 answers
  • Solve the following problem. (Assume that all items are equally priced.)
    5·1 answer
  • The figure shows the dimensions of a birdhouse Sharri built. How much birdseed will it take to fill Sharri’s birdhouse completel
    11·2 answers
  • Solve the equation below <br>26=8+v<br>v=?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!