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3 years ago

Based on the following passage, why might a demolition team wish to measure the success of a demolition?

Business

1 answer:

Luda [366]3 years ago

8 0

The answer is most likely 3 because if the demolition isnt successful then they'll have to redo it

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Let x be per capita income in thousands of dollars. Let y be the number of medical doctors per 10,000 residents. Six small citie

MAVERICK [17]

Answer:

The percentage of variation esplained by the model is given by the determination coefficient, on this case:

$R^2 = 0.934^2 =0.872$

And we have 87.2% of the variation explained by the linear model given.

$\hat y = 5.756(8.5) -36.895=12.031$

And we have 12.031 doctors per 10000 residents.

Explanation:

Assuming the following dataset:

x y

8.6 9.6

9.3 18.5

10.1 20.9

8.0 10.2

8.3 11.4

8.7 13.1

Assuming this question: "The data has a correlation coefficient of r = 0.934. Calculate the regression line for this data. What percentage ofvariation is explained by the regression line? Predict the number of doctors per 10,000 residents in a town with a per capita income of $8500."

We want a linear model like this:

$y = mx +b$

Where m represent the slope and b the intercept for the linear model. And we cna find the slope and b with the following formulas:

$m = \frac{n \sum xy - \sum x \sum y}{n \sum x^2 -(\sum x)^2}$

$b = \frac{\sum y}{n} -m \frac{\sum x}{n}$

And from the dataset we have the following values:

$n= 6, \sum x =53, \sum y = 83.7 , \sum xy = 755.89, \sum x^2 = 471.04$

And replacing into the equation for m we got:

$m =\frac{6(755.89) - (53)(83.7)}{6(471.04) -(53)^2}=5.756$

And the intercept:

$b = \frac{83.7}{6}-36.895 5.756 \frac{53}{6}=-36.895$

And then the linear model is given by:

$\hat y = 5.756 x -36.895$

We can find the estimation replacing x = 8.5 into the linear model and we got:

$\hat y = 5.756(8.5) -36.895=12.031$

And we have 12.031 doctors per 10000 residents.

The percentage of variation esplained by the model is given by the determination coefficient, on this case:

$R^2 = 0.934^2 =0.872$

And we have 87.2% of the variation explained by the linear model given.

4 0

3 years ago

How does a country determine whether it has a comparative advantage in the production of certain goods?

Sergeu [11.5K]

Answer:

Comparative Advantage: A country has a comparative advantage in producing a commodity if the opportunity cost of producing that commodity in terms of other commodity is lower in that country as compared to the other country.

For determining comparative advantage, countries compare their good's opportunity cost with the other country's goods opportunity cost.

7 0

3 years ago

Which type of business produces processed goods by changing raw goods into a more finished form?

Naddik [55]

Answer:

Bakeries are known for turning raw goods into things like bread

6 0

2 years ago

Ethnocentric managers believe that their native country, culture, language, and behavior need to be changed. are equal to all ot

Levart [38]

Answer:

are superior to other cultures.

Explanation:

Ethnocentrism is the belief that indigenous culture, customs, and way of life are more important than other cultures. Ethnographers believe that their own culture, country, language and all other characteristics are superior to other cultures.
so correct answer are superior to other cultures.

3 0

3 years ago

During the final or phaseout stage of the project life-cycle, __________ is the dominant goal of many project managers.

Anarel [89]

During the final or phaseout stage of the project life-cycle, scope is the dominant goal of many project managers.

6 0

3 years ago