SAT : asked on leeannjones1
 11.08.2021

1. Lazarus Steel Corporation produces iron rods that are supposed to be 36 inches long. The machine that makes these rods does not produce each rod exactly 36 inches long. The lengths of the rods are normally distributed, and they vary slightly. It is known that when the machine is working properly, the mean length of the rods is 36 inches. The standard deviation of the lengths of all rods produce on this machine is always equal to .035 inch. The quality control department at the company takes a sample of 20 such rods every week , calculates the mean length of these rods, and tests the null hypothesis , inches, against the alternative hypothesis mu ne36 inches the null hypothesis is rejected, the machine is stopped and adjusted. A recent sample of 20 rods produced a mean length of 36.015 inches mu = 36 a) Calculate the P-value for this test of hypothesis . Based on this P-value, will the quality control inspector decide to stop the machine and adjust it if he chooses the significance level to be .02? What if the significance level is.10? b) Test the hypothesis of part a) using the critical value approach and a = .1 Does the machine need to be adjusted? What if alpha = .02 ?

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Faq

SAT
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P Answered by PhD
One might use elaboration to further explain a concept or a certain situation to another person or group of people. For example, I used elaboration or explained the contents of my bedroom in deeper detail. One item in particular is a Japanese Vase that is overall white, but has beautifully painted blue birds on it, clutching cherry blossoms in their feet with Japanese writing on the sides. In this way, I am elaborating or further explaining the content of the vase and not simply saying; "a white Japanese vase"
SAT
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P Answered by Specialist

True.

Explanation:

The uncertainty of inventiveness and futuristic ideas usually deal with science and technology.

Inventibility is something uncertain which promotes a risk in any system in which it is inserted. With that, we can naturally associate it with the maintenance of science and technology, because both are in need of inventing new creations, which may or may not be effective for the defeat of uncertainties and the creation of certainties.

This is usually linked to futuristic ideas, which may not fit in today's society, but which impose improvements, or not, for societies in the future. Leading to the creation of more technologies and more sciences.

SAT
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P Answered by Master

The answer is: teller, loan officer, and tax preparer

Teller act as a front liner on banks who deals directly with the customers. The main job of a teller is to assist the people in making their transaction in the bank.

The main duty of a loan officer is to finds potential clients who need capital injection and assists them in acquiring loans.

Tax prepares help their clients in examining their tax report in other to find out the items that can be used as tax returns.

SAT
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P Answered by Master

Qualified terms include: sometimes, maybe, may, possibly, some, few Absolute terms include: always, never, only, must Qualified and absolute terms can change the possibility of an answer being correct, by simply including an always, only, or never in the test question.

Explanation:

sample answer

SAT
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P Answered by Master

The mean of the distribution is 4.00 and the standard deviation is 2.31

Explanation:

Given

Range = 2 to 10

Type of distribution = uniform distribution

Required

1. Mean

2. Standard Deviation

The mean of uniform distribution is calculated as thus;

Mean = \frac{1}{2}(a + b)

Where b and a are the intervals of the distribution

b = upper bound = 10

a = lower bound = 2

So,

Mean = \frac{1}{2}(a + b)

Substitute 10 for b and 2 for a

Mean = \frac{1}{2}(2 + 10)

Mean = \frac{1}{2}(12)

Mean = \frac{1}{2} * 12

Mean = 6

Mean = 6.00 (Approximated to 2 decimal places)

The standard deviation of uniform distribution is calculated as thus;

σ = √σ²

Where σ represents the standard deviation and σ² represents the variance.

Calculate variance

σ² = Var

Var = \frac{(b-a)^2}{12}

Substitute 10 for b and 2 for a

Var = \frac{(10 - 2)^2}{12}

Var = \frac{8^2}{12}

Var = \frac{64}{12}

Var = 5.33

Recall that

σ = √σ² = √Var

Substitute 5.33 for Var

σ = √5.33

σ = 2.309401076758503

σ = 2.31 (Approximated)

Hence, the mean of the distribution is 4.00 and the standard deviation is 2.31

SAT
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P Answered by Master

D. Resilience involves approaching reality bravely and with a sense of possibility, as well as finding meaning in the challenges one encounters.

E. Companies with strong value systems are more likely to be resilient and survive the hardships they may encounter along the way.

Explanation:

How Resilience Workds by Diane Coutu talks about how resilience has shown to be an important chracteristic socially, but also for surviving or living through life. Being resilient means being able to make sense of events, whether good or bad, and finding meaning to it to understand what needs to be done to get through them.

Values also plays a pivotal role in resilience because it serves as the "meaning" to the environment they are living in. Companies with strong value systems gives meaning to the work place which helps employees understand how and why they operate the way that they do.

SAT
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P Answered by Specialist

Solution:

We are given:

Number of male fishes surveyed by Elena in a river = 350

Number of male fishes with eggs growing inside them = 150

Therefore the number of male fishes without eggs = 350 - 150 = 200

Now the ratio of male fish with egg cells to male fish without egg cells in the river is:

\frac{150}{200}=\frac{3}{4}

Therefore, the ratio of male fish with egg cells to male fish without egg cells in the river is \frac{3}{4}

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