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anonymous
 one year ago
Whats the regression equation???
Height: 115, 124, 75, 75, 130, 74, 98, 87
Interval after min: 84, 78, 65, 69, 81, 72, 65, 66
Current eruption has a height of 92ft
Use the significance level of 0.05.
ŷ = ( ) + ( )x
anonymous
 one year ago
Whats the regression equation??? Height: 115, 124, 75, 75, 130, 74, 98, 87 Interval after min: 84, 78, 65, 69, 81, 72, 65, 66 Current eruption has a height of 92ft Use the significance level of 0.05. ŷ = ( ) + ( )x

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amistre64
 one year ago
Best ResponseYou've already chosen the best response.1looks like a prime candidate for the ti83

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1but then im not sure what the last line means for this

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1input your values into list 1 and list 2 there is a function on your ti83 that will then give you the regression line.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1otherwise, it gets complicated, but excel or some spreadsheet makes life simpler for us

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is my last question that I am having issues with

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1yeah, its a bit complicated, but listing them is the key .... by hand, we would need to know more complicated results sum of x^2 sum of y^2 sum of xy sum of x sum of y average x average y and number of ordered pairs.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I tried but I am getting the wrong data input

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Please please help me on this one

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1ive got a spread sheet worked out hold on

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much!!!

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1ok, this is what im getting, and ill explain it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay thank you bc that looks confusing lol

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1we want to utilize the point slope formula, our point (avgX, avgY) and a slope that is determined by the formula: \[m=\frac{n\sum xy\sum x\sum y}{n\sum xx\sum x\sum x}\] as such: \[\hat y=avgY+m(xavgX)\] \[\hat y=avgYm.avgX~+mx\] i used the spreadsheet to make all these calculations m = 2.356 avgYm.avgX = 268.040

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1now i dont know what your program is wanting as far as how many decimal places to rnd to

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1i cut it off at 3 decimals

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1and I have no idea what this is refering to: Use the significance level of 0.05

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So, it should then say ŷ = (2.356 ) + ( 268.04)x

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1that is what i would use for it, but again, i dont know what your course uses as a rnding of decimals. I used 3 places.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it says two decimal places

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1ŷ = (avgYm.avgX ) + (m)x ŷ = (268.04 ) + ( 2.36)x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ugh it said it wasn't right

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1the equation itself is all i can answer to, the rest of it ... i havent a clue about.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did you find the best predicted value?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1y^ is the best predictor

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1when we formulate the regression line, we then use it for x=96

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1well, 92 in this case

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1if i had excel, it would allow me to verify the line, but i have something else on this computer ... guess i can use a website

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ŷ = (47.87 ) + ( 0.25)x what about from this?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1ok, an online calculator says ive got an error in the y intercept slope is fine tho

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1got it now, i erred in multiplyng :) y = m(xX) + Y y = mx mX + Y ^^^^ i ignored the negative of it

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1this is the correction y = 2.36x  73.54
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