The following data show the brand, price $ , and the overall score for 6 stereo headphones that were tested by Consumer Reports. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0(lowest) to 100(highest). The estimated regression equation for these data is y=23.043 +0.32x , where x = price and y=overall score. BrandPriceScore
Bose17075
Scullcandy16071
Koss9562
Phillips/O'Neill7056
Denon6040
JVC4526
Round your answers to three decimal places.

a. Compute SST, SSR and SSE.

SST (to 3 decimals)
SSR (to 3 decimals)
SSE (to 3 decimals)
b. Compute the coefficient of determination r^2.

r^2 =

c. What is the value of the sample correlation coefficient?

rxy=

answer: 298143

step-by-step explanation:

answer: h

step-by-step explanation:

i think the answer is b

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places