answer.
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
vovangra
2 months ago
9

A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on data collected from its automatic filling​ p

rocess, the amount of cheese inserted into the ravioli is normally distributed. To make sure that the automatic filling process is on​ target, quality control inspectors take a random sample of 25 ravioli and measure the weight of cheese filling. They find a sample mean weight of 15 grams with a standard deviation of 1.5 grams. What is the margin of error at​ 90% confidence?
Mathematics
1 answer:
lawyer [12.5K]2 months ago
6 0

Answer:

At a confidence level of 90%, the margin of error is calculated to be 0.5133 grams.

Step-by-step explanation:

The formula for margin of error (E) is: (critical value × sample standard deviation) ÷ sqrt(n)

The sample standard deviation is 1.5 grams.

A 90% confidence level translates to 0.9.

Significance level is determined as 1 - C, which equals 1 - 0.9 resulting in 0.1 or 10%.

The sample size (n) is 25.

Degrees of freedom are calculated as n - 1, which is 25 - 1 equaling 24.

The critical value (t) for 24 degrees of freedom at a significance level of 10% is found to be 1.711.

Using these values, we calculate: E = (1.711 × 1.5) ÷ sqrt(25) = 2.5665 ÷ 5 = 0.5133 grams.

You might be interested in
If Jean’s weekly income doubled she would be making $120 a week more than Barbara. Jean’s
AnnZ [12381]
The correct choice is c because her earnings total $240.
5 0
1 month ago
In a state where tax is 5%, Jane bought a telescope and paid $4.55 in tax. What is the price of the telescope?
tester [12383]
The telescope’s cost is $91

4.55 divided by 5% (0.05) equals 91.
7 0
1 month ago
Read 2 more answers
Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 32 feet.
Svet_ta [12734]

Response:

Step-by-step breakdown:

When you sketch that diagram (great description, by the way!), what you essentially have is a right triangle with a base of 32 and a hypotenuse of 45. The right angle resides at one of the base's ends, and x represents the vertex angle. We must find this vertex angle first to determine the angle of depression from the second bird to the watcher. The side measuring 32 is opposite to angle x, with 45 being the hypotenuse; hence, the trigonometric relation we need is sine:

sin(x)=\frac{32}{45} and

sin(x) =.711111111

Go to your calculator, press the 2nd key followed by the sin key, and your display will show:

sin^{-1}(

then, enter in your decimal.711111111 and hit equals. You should arrive at an angle of 45.325. That angle is x. However, that's not the angle of depression. The angle of depression is the complementary angle to x.

Angle of depression = 90 - angle x and

Angle of depression = 90 - 45.325, resulting in

Angle of depression = 44.67 or 44.7 degrees.

8 0
1 month ago
105,159 rounded to the nearest ten thousand
Svet_ta [12734]

In this problem the number we are working with is:

105,159

By definition we note:

thousand place: a five-digit quantity greater than zero.

Moreover, the rounding rule is:

if the digit being removed is 5 or more, increase the kept digit by one.

Therefore, rounding to the nearest ten thousand yields:

105,159 = 110,000

Answer:

105,159 rounded to the nearest ten thousand is:

105,159 = 110,000

6 0
3 months ago
Read 2 more answers
1199.28856995 to the nearest ten
lawyer [12517]
Hey! Hi! Hola! Aloha!


When rounding 1199.28856995 to the nearest tenth, the result is 119.3.

I hope this is helpful!
4 0
2 months ago
Read 2 more answers
Other questions:
  • A model that describes the population of a fishery in which harvesting takes place at a constant rate is given by dP dt = kP − h
    7·1 answer
  • g European roulette. The game of European roulette involves spinning a wheel with 37 slots: 18 red, 18 black, and 1 green. A bal
    5·1 answer
  • Mrs.thapa bought 150 kg of oranges.18 kg of oranges were rotten and not fit for selling.If she sold the remaining quantity of or
    6·2 answers
  • Circle F is congruent to circle J, and ∠EFD ≅ ∠GJH. Circles F and J are congruent. Line segments F E and F D are radii. A line c
    12·2 answers
  • If there were 49 cars in a line that stretched 528 feet, what is the average car length? assume that the cars are lined up bumpe
    8·1 answer
  • Ten people, including Fred, are in the Jazz Club. They decide to form a 3-person steering committee. How many possible committee
    8·1 answer
  • Javier read a report that said the probability that a randomly selected American is left-handed is 14\%14%14, percent. He was cu
    9·2 answers
  • Which term can be added to the list so that the greatest common factor of the three terms is 12h3?
    14·2 answers
  • A veterinarian does research on the causes of enteroliths, stones that develop in the colon of horses. She suspects that feeding
    8·1 answer
  • Values that can makes an inequality a true statement are called the ____________.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!