One division of a large defense contractor manufactures telecommunication equipment for the military. This division reports that 12% of non-electrical components are reworked. Management wants to determine if this percentage is the same as the percentage rework for the company’s electrical components. The Quality Control Department plans to check a random sample of the over 10,000 electrical components manufactured across all divisions. The 95% confidence interval based on this data is .0758 to .1339. Should management conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components?

Question

13-06-2020
Mathematics

contestada

One division of a large defense contractor manufactures telecommunication equipment for the military. This division reports that 12% of non-electrical components are reworked. Management wants to determine if this percentage is the same as the percentage rework for the company’s electrical components. The Quality Control Department plans to check a random sample of the over 10,000 electrical components manufactured across all divisions. The 95% confidence interval based on this data is .0758 to .1339. Should management conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components?

Respuesta :

Otras preguntas

Please help help help help help ill give u the brainliest

Why is the infrastructure used for marketing sales in the past becoming useless for today’s needs? I’ll give brainlest to the best answer!!

The property taxes on a home varies directly with the value of the home. Jack currently lives in a home worth $172,000 and pays $13,760 in taxes. How much would

PLEASE HELPPPPPPPPPPPPPPPPPPPPIf the difference of two number is 3 and the product is 70 then find the sum of the square of the numbers

Nathan and Matt plan to paint a house. If Nathan works alone, it will take 10 days. If Matt works alone, it will take 15 days. How many days will it take to fin

help me for brainlist

Lines a and b are cut by transversal f. At the intersection of lines f and a, the top left angle is 96 degrees. At the intersection of lines b and f, the bottom

describe the transformations of the following functions from their parent function

What is 45 minutes before 7 o'clock

A rectangle has four sides. Fill in the blanks in the double number-line below. rectangles 1 2 3 4 8 12 28 sides Plz help

joaobezerra joaobezerra · Answer 1 · 2020-06-14T02:22:22+02:00

Answer:

At the 95% confidence level, management should not conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components, since the upper bound of the confidene interval, which is 0.1339, is higher than 0.12.

Step-by-step explanation:

To reach a conclusion, we have to observe the confidence interval.

Should management conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components?

Is the upper bound of the confidence interval lower than 12% = 0.12?

If yes, it should conclude that this percentage is lower.

Otherwise, it cannot conclude.

Confidence interval:

0.0758 to 0.1339

0.1339 is higher than 0.12.

So.

At the 95% confidence level, management should not conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components, since the upper bound of the confidene interval, which is 0.1339, is higher than 0.12.

mtosi17 mtosi17 · Answer 2 · 2020-06-14T02:24:15+02:00

Answer:

We can not conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components.

Step-by-step explanation:

The 95% confidence interval tells us that the true mean of the percentage of rework for electrical components is between 0.0758 (7.58%) and 0.1339 (13.39%), with a degree of confidence of 95%.

The value reported of 12% is included in this interval, so it is possible that the true mean for this value is 12%. In other words, we can not reject the hypothesis that the true percentge of rework is 12%.

Then, we can not conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components.