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vichka [17]
3 years ago
6

The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollar

s) for individual stores based on the number of customers who made purchases. A random sample of 12 stores yields the following results:
Customers | Sales (Thousands of Dollars)
907 | 11.2
926 | 11.05
713 | 8.21
741 | 9.21
780 | 9.42
898 | 10.08
510 | 6.73
529 | 7.02
460 | 6.12
872 | 9.52
650 | 7.53
603 | 7.25

(a) Estimate a linear regression. What are the values of the estimated intercept and slope? Show how you obtain your answer.

Business
1 answer:
NNADVOKAT [17]3 years ago
4 0

Answer

The answer and procedures of the exercise are attached in the following archives.

Explanation  

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  

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A farmer uses two types of fertilizers. A 50-lb bag of Fertilizer A contains 10 lbs. of nitrogen, 2 lbs. of phosphorus, and 6 lb
Lera25 [3.4K]

The answer is, Fertilizer A = 20, Fertilizer B = 56.

<h3>What is fertilizer and example?</h3>
  • Among the organic fertilizers that occur naturally are manure, slurry, worm castings, peat, seaweed, and guano. Crops made of green manure are also raised to enrich the soil with nutrients.
  • Organic fertilizers also include naturally occurring minerals including mine rock phosphate, sulfate of potash, and limestone.

<h3>Set up the equations:</h3>
  • Nitrogen: 8x + 5y ≥ 440.
  • Phosphorous: 2x + 5y ≥ 260.
  • Potassium: 4x + 5y ≥ 360.
<h3>Find the vertices:</h3>
  • It is easiest to graph the equations to find the vertices. (see attachment).
  • You can also solve each system of equations to find the intersected points.

<h3>The following satisfy the "greater than or equal to" requirement:</h3>
  • (0, 88)  = y-intercept of Nitrogen equation.
  • (20, 56) = intersection of Nitrogen and Potassium equations.
  • (50, 32)  = intersection of Phosphorous and Potassium.
  • (130, 0)  = x-intercept of Potassium.

<h3>Use vertices in cost function C(x) to find the minimum:</h3>

  • C(x) = $30x + $20y.
  • (0, 88): $30(0) + $20(88) = $1760.
  • (20, 56): $30(20) + $20(56) = $1720    = This is the minimum!
  • (50, 32): $30(50) + $20(32) = $2140.
  • (130, 0): $30(130) + $20(0) = $3900.

The minimum cost occurs when 20 bags of Fertilizer A and 56 bags of Fertilizer B are purchased.  

Learn more about Fertilizer here:

brainly.com/question/3204813

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3 0
2 years ago
Positively Rivet Inc. is a small machine shop that produces sheet metal products. It had one line dedicated to the manufacture o
Montano1993 [528]

Answer:

Don't ask so many questions at the same time ok

6 0
3 years ago
A proposed project has fixed costs of $43,000 per year. the operating cash flow at 16,000 units is $89,000. a. ignoring the effe
ryzh [129]

A proposed project has fixed costs of $43,000 per year. the operating cash flow at 16,000 units is $89,000. a. ignoring the effect of taxes, what is the degree of operating leverage?

Answer:

Fixed Costs = $43,000

Operating Cash flow at 16,000 units = $89,000

Degree of Operating Leverage = 1 + Fixed Costs / Operating Cash flow

Degree of Operating Leverage = 1 + $43,000 / $89,000

Degree of Operating Leverage = 1.4831

The Degree of Operating Leverage measures how a good deal a employer's operating earnings modifications in response to a change in sales. The DOL ratio assists analysts in determining the impact of any trade in sales on company earnings.

What's the method for Degree of Operating Leverage?

The Degree of Operating Leverage can also be calculated by using subtracting the variable fees of income and dividing that range via sales minus variable expenses and glued costs.

What does Degree of Operating Leverage measure?

The Degree of Operating Leverage (DOL) is a more than one that measures how a good deal the operating profits of a enterprise will alternate in reaction to a exchange in income.

Is a higher Degree of Operating Leverage better?

Generally speak me, excessive running leverage is better than low running leverage, as it permits businesses to earn large income on each incremental sale. Having stated that, organizations with a low Degree of Operating Leverage can also discover it less complicated to earn a profit while handling a lower degree of sales.

Learn more about Degree of Operating Leverage here:- brainly.com/question/26978903

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6 0
2 years ago
Why would a business prefer to keep an invention secret instead of applying for a patent
kati45 [8]
Answer Trade secrets derive their legal protection from their inherently secret nature
7 0
2 years ago
When the consumer price index falls, the typical family has to spend fewer dollars to maintain the same standard of living.
mel-nik [20]

A. True

The CPI is a measure of the cost of a "basket" of typical consumer goods, so if the cost of these goods goes down most families will spend less on average.

6 0
3 years ago
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