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Pepsi [2]
3 years ago
10

The owner of Boston sports bar believes that, on average, her restaurant is busier on days when the Red Sox play an away game (a

game played at another team’s stadium), but she wants to be sure before adding more staff. To test whether this is true, she takes a random sample of 50 days over the course of the baseball season and records the total daily revenue, along with whether the Red Sox were playing away that day (1 if yes, 0 if no). Using the data provided, perform a regression analysis to determine the effect of Red Sox away games on revenue. Be sure to include the residuals and residual plot in your analysis.

Mathematics
1 answer:
Lilit [14]3 years ago
3 0

Answer:

Check Explanation and the third attached image to this solution for the summary of regression analysis.

Step-by-step explanation:

The data for the question is missing. It was obtained online and is presented in the first and second attached images to this solution.

The regression analysis is then done with Excel and the results posted in the third attached image to this solution.

The residuals too are with the results.

Hope this Helps!!!

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Follow the process of completing the square to solve 2x2 + 8x - 12 = 0.
Rom4ik [11]
Please:  Use "^" to denote exponentiation:  <span>2x^2 + 8x - 12 = 0

Reduce this by div. every term by 2:             </span><span>x^2 + 4x - 6 = 0

Here a=1, b=4 and c = -6.  Square half of b, obtaining (4/2)^2 = 4, and add, and then subtract, this 4 to x^2 + 4x - 6:

</span> x^2 + 4x +4  - 4 - 6 = 0.  Rewrite the square as (x+2)^2, obtaining new equation

(x+2)^2 = 10.  Take the sqrt of both sides:   x+2 = plus or minus sqrt(10).

Finally, solve for x:  x = -2 plus or minus sqrt(10).



8 0
3 years ago
Liz train for rock climbing 4 days a week
Goshia [24]
7 times 4 =28 this is cuz there is seven days in a week and 7x4
7 0
2 years ago
2x + 3x -4y + 77y - 4y - 1y<br>Simplify this equation please!​
Len [333]

Answer:

5x+68y

Step-by-step explanation:

2x+3x-4y+77y-4y-y

combine x's and y's

5x+68y

that is your answer

5 0
3 years ago
Read 2 more answers
Please help me out!!!
professor190 [17]

Answer:

<u>416 square centimeters</u>

Step-by-step explanation:

Formula for finding area of a trapezoid :

<u>A = 1/2 x (a + b) x h</u>

  1. a and b = parallel sides of the trapezoid
  2. h = height of the trapezoid

Solving :

  • A = 1/2 x (38 + 14) x 16
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3 0
2 years ago
Read 2 more answers
The following function represents the value of a motorcycle, in dollars, after x years: f(x) = 19,000(0.91)x
Semenov [28]

Answer:

Option C.The decrease in the value of the motorcycle, which is 9%

Step-by-step explanation:

we have a exponential function of the form

f(x)= ab^x

where

a is the initial value

b represents growth or decay factor

If b >1 then it is an exponential growth

if 0<b<1 then it is an exponential decay

In this problem

a=$19,000

b=0.91 -----> it is exponential decay factor

Find the rate of decrease r

b=(1-r)

substitute

0.91=1-r

r=1-0.91=0.09

Convert to percentage

0.09*100=9%

therefore

0.91 represent the decrease in the value of the motorcycle, which is 9%

7 0
2 years ago
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