A toy manufacturer wants to see how long, on average, a new toy captures children's attention. he tests children selected at random and finds that their mean attention span is minutes with a standard deviation of minutes. if we assume that attention spans are normally distributed, find a confidence interval for the mean attention span of children playing with this new toy. then find the lower limit and upper limit of the confidence interval.
carry your intermediate computations to at least three decimal places. round your answers to one decimal place. (if necessary, consult a list of formulas.)

lower limit:

upper limit:

Answer: it is made out of cement and bricks

Explanation: I just did this

Answer: The answer is cardboard and tin.

ENJOY!!!:)

Answer:

90 mins i think. Sorry if wrong im not sure

Explanation:

∆BDI is necessarily a right triangle, since the squares of the two smaller sides is exactly the square of the longest side.

3² + 4² = 9 + 16 = 25 = 5²

Then the angle bisector AD forms a right angle with the base BC - this means AD is an altitude of ∆ABC.

Since AD bisects the angle at vertex A, we further know that ∆ABC is isosceles, since both ∆ABD and ∆ACD are right triangles with the same height AD. Then the length of BC is twice the length of BD, and ∆ABC has a base of length 8.

Let θ be the measure of one of the base angles of ∆ABC (angle ABC, for instance). Then in ∆BDI, we have the trigonometric relationship

tan(θ/2) = 3/4

from which we get

θ/2 = arctan(3/4)

θ = 2 arctan(3/4) ≈ 73.74°

Then the height of ∆ABC is

tan(θ) = AD/4

AD = 4 tan(θ)

AD = 4 tan(2 arctan(3/4))

AD = 4 • 2 tan(arctan(3/4)) / (1 - tan²(arctan(3/4)))

AD = 4 • 2 • 3/4 / (1 - 9/16) = 96/7

Then the area of ∆ABC is

1/2 • 8 • 96/7 = 384/7

Answer:

They are distributed unevenly as it appears that there is slightly more soil than coal reserves.

Julio's aptitude assessment revealed that his natural talent for music. Also, his personality inventory reveals he's friendly while his interest inventory showed he likes to be outdoors.

A self-assessment test can be defined as a type of test through which an individual gathers information himself or herself, so as to enable him or her identify the elements that can be improved upon or exploited, as well as make an informed decision towards achieving a predefined goal.

Based on the self-assessment tests completed by Julio, his aptitude assessment revealed that he has a natural talent for music. Also, his personality inventory reveals he's friendly while his interest inventory showed he really likes to be outdoors and around people.

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Complete Question:

Julio completed a series of self-assessment tests in his career explorations class. His ______ assessment revealed that he has a natural talent for music. His _____ inventory said that he is friendly, and his _____ inventory said that he really likes to be outdoors and around people.

Answer: the answer is maxwell

The area of the top surface of wedge shaped cheeses bought by Mai is; 39.3 cm².

The area of a circular sector is the total space occupied by it. The sector area is half of the product of the square of radius of the circle and the central angle.

It can be calculated if θ is measure in degree as;

A = πr²θ/360

We are given;

Radius; r = 10 cm

Central Angle; θ = 45°

Thus;

A = π(10)² * 45/360

A ≈ 39.3 cm²

Thus, the area of the top surface of wedge shaped cheeses bought by Mai is 39.3 cm².

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The list of things you should remember to include in developing your poe speech are; variety of definitions, several credible sources

Speech is the formal disclosure of thoughts to the audience. This includes an introduction, body, and conclusion. The speech must include a clear message, context, interference, and feedback.

To prepare a speech on Poe, we must use several credible sources to generate information and data about him and his work in that regards and use a variety of definitions as his importance in American literature.

Thus, the correct option is Option C, variety of definitions, several credible sources.

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Answer:

On Edge2022: Researching the topic in advance

Explanation:

Speaker researching the topic in advance is the best  strategy that will help to succeed Julia. Option D is correct.

The advancement of humanity is fueled by research. Curiosity is what drives it; when we get interested, we start asking questions and engrossing ourselves in learning everything there is to know.

Education is booming. Without curiosity and inquiry, development would stall, and life as we know it today would be entirely different. Unknowns can be resolved through research, which closes knowledge gaps and modifies how healthcare personnel operate.

Therefore, option D is correct.

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The correct form of the present perfect tense. los hombres han pescado por muchas horas en el mar.

The Spanish terms "The correct form of the present perfect tense. los hombres han pescado por muchas horas en el mar. " is known to be:

The correct form of the present perfect tense. men have fished for many hours in the sea and thus this is the correct terms.

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Answer: han pescado

Explanation:

Answer:

I am assuming vivimos

Explanation:

if it is ending in os its conjuction would imos

Answer:

33 minutes

Explanation:

So, Copper went into the store at 4:40 p.m. then came out at 5:13 p.m.

One way to visualize this is to first count the minutes to 5:00 p.m. and then add the minutes after that. So, there is 20 minutes till 5:00 p.m., and then 13 minutes until 5:13 p.m. 20 + 13 = 33 minutes. This makes it easier to see how long Copper took in the store.

Hope this helps!! If you have any questions about my work, please let me know in the comments!

Answer:

c

Explanation:

The difficulty that the united states face in the future as it seeks to secure human rights in a global community are; as itemized below.

A fundamental human right is a right which all humans have been given and which no man can take away.

Some examples of fundamental human rights include;

Now, the challenges of human rights are;

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Sweat on the surface of skin works as a cooling system because the liquid water absorbs heat from the skin surface and is transferred to the air when the water evaporates.

The cooling effect on a body via sweating depends on a principle of physics known to be "heat of vaporization."

This is where it uses energy to evaporate sweat off of your skin and excess body heat is used to convert  sweat into vapor and a person start to cool down.

Therefore, Sweat on the surface of skin works as a cooling system because the liquid water absorbs heat from the skin surface and is transferred to the air when the water evaporates.

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Answer:

Its A.

Explanation:

Edge, IM TIRED OF THIS!!

The consequence of a type I error in this situation is that the owner believes the crop will be more profitable and expands the apple orchard.

A type I error can be defined as a type of error that occurs when the null hypothesis is rejected, even though it's actually true.

This ultimately implies that, a type I error concludes that a given result is statistically significant, whereas, in reality, it was due to luck, chance or other unrelated factors.

In this scenario, the consequence of a type I error in this situation is that the owner believes the crop will be more profitable and expands the apple orchard, when the true mean weight of the apples is actually lesser than 140 grams.

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Based on the excerpt, this part of a letter is called the: C. body.

Generally, there are four (4) main parts of a letter and these include the following:

In English literature, the body of a letter comprises a detailed information about the subject matter or topic being discussed.

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Complete Question:

Read part of a letter

I believe our school should promote Earth Day

activities. We could encourage efforts to walk to school,

and we could dedicate the afternoon to tending our

school grounds.

This part of a letter is called the? heading. salutation. body. closing.

Answer:

c body

Explanation:Good luck

The example of inner conflict encountered by Huck in chapters 16 is that His  conscience troubles.

In Chapter 16, it tells that Huck's conscience troubles him a lot in the case of Him helping Jim escape from his “original owner,”

He knows what Miss Watson has done for Him and as such, this made him to have inner conflict.

Therefore, The example of inner conflict encountered by Huck in chapters 16 is that His  conscience troubles.

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Answer:

i think web camera

Explanation:

Answer: It would be Web, Camera, Mouse, Keyboard, Graphics card so it's all of them

Explanation:

One activist who lobbied successfully to pass the agricultural labor relations act of 1975 was Dolores Huerta.

Many small farmers have become tenant farmers or moved to cities, enclosures have become landmarks of rich landowners, and landowners experimented with new agricultural methods.

Dolores Huerta changed into additionally instrumental withinside the enactment of the Agricultural Labor Relations Act of 1975. This changed into the primary regulation of its type withinside the United States, granting farm workers in California the proper to together arrange and a good buy for higher wages and operating conditions.

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The true statement about the causation between the variables  it is a weak negative correlation, and it is not likely causal.

The causation between the variables shows that the occurrence of one event causes the occurrence of the other.

The informal relationship between two events.

Thus, the correct option is A, it is a weak negative correlation, and it is not likely causal.

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Answer: The answer would be 5%

Explanation:

The closest answer choice is 2.5%, which is the closest value to 1.7% given in the answer choices.

The Z-score is a statistical measure that describes the relationship of a value to the mean of a group of values.

To solve this problem, we can use the standard normal distribution and the z-score formula:

z = (x - μ) / σ

Where x is the value we want to find the probability for, μ is the mean of the distribution, and σ is the standard deviation of the distribution.

In this case, we want to find the percentage of snakes that are longer than 16.6 in., which corresponds to a z-score of:

z = (16.6 - 15) / 0.8 = 2.125

Using a standard normal distribution table or calculator, we can find that the percentage of values in the distribution that are greater than a z-score of 2.125 is approximately 1.7%. Therefore, approximately 1.7% of snakes are longer than 16.6 in.

Thus, the probable answer is 2.5%.

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Rock trails are the passages and paths that are made by rocks of different sizes in a region. A rock trail with 33 cm wideness is made of 50 cm wide rock. Thus, option C is correct.

Wideness is the measure of the broad and the breadth and is the measure of the unit of length or the height.

According to the  scientist 1, the rock trail left by the rock is 2/3 so the width of the rock is given as,

3/2 × 33 = 49.5 cm

Therefore, 50 cm is the width.

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Answer:

false

Explanation:

I think it’s false because sometimes at school I get tired in my arms because I’m probably not getting enough exercise. This is why I think it’s false.

Answer:

F

Explanation:

One effect of the underlined text is that it shows how Victoriano's insensitivity to Clarence's obvious discomfort.

The effect on something or someone, it known to be one that alters or influences that thing or changes the person in some way.

Therefore, One effect of the underlined text is that it shows how Victoriano's insensitivity to Clarence's obvious discomfort.

See options below

One effect of the underlined text is to

A. show Victoriano's insensitivity to Clarence's obvious discomfort.

B.create conflict between Victoriano and Clarence about how to approach Don Mariano.

C.foreshadow that there will be conflict between Clarence and his father.

D.hint that everything will be settled without drama or misunderstandings

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The measurement that is closest to the amount of bracing she will need in inches is 6.7 inches.

Using Pythagorean theorem for

Let x represent the measurement

Hence

x=√3²+6²

x=√9+36

x=√45

x=6.708

x=6.7 inches (Approximately)

Therefore the measurement that is closest to the amount of bracing she will need in inches is 6.7 inches.

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Scrum is the agile framework that breaks the workload into smaller increments to improve team focus and simplify testing.

An agile framework may be defined as a detailed technique for planning, managing, and accomplishing any task in a precise manner. It is conceived for teams and to support organizations' practices.

The complete question is as follows:

Scrum is represented as a framework that supports team members to work together in a specific environment. It exploits the concept of devising the team to learn through experiences, self-organizing, and deliberating on the profits and flops in a team concurrently.

Therefore, it is well described above.

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Rounding to two decimal places, the probability that a randomly chosen book contains fewer than 141 pages is about 2.5%.

If you tell us that you have saved 15% of your income plus $1,250, we must first divide that amount by 15% to arrive at 187.5, and then we must add that figure to $1,250 to arrive at 1,437, which is Lisa's money.

In this issue, our goal is to determine the likelihood that a randomly chosen book contains fewer than 141 pages.

Where x is the value we're interested in (141 pages), is the mean (193 pages), and is the standard deviation, we get the equation z = (x - ) /. z = (141 - 193) / 26 = -2

The z-score informs us of how many standard deviations our value deviates from the mean. 141 pages in this case are two standard deviations away from the mean.

We may estimate that 95% of the data falls within two standard deviations of the mean using the empirical method. We can estimate that P(X 141) 2.5% is the likelihood of choosing a book with fewer than 141 pages.

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The percentage decrease is used because the difference in mass does not deal with the proportional aspect of the solutions whereas the percent is calculated to give an exact difference, including the quantities of solution.

Percentage decrease in mass simply means the percentage by which the mass of a substance was decreased in chemistry.

Now, the difference in mass is sometimes useful but then it does not deal with the proportional aspect of the solutions, which makes the results less accurate.

The percentage decrease in mass is usually calculated to give an exact difference while inspecting the quantities of solution.

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