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theopenstudyowl
 one year ago
Stats calculator question..... Will medal!
theopenstudyowl
 one year ago
Stats calculator question..... Will medal!

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amistre64
 one year ago
Best ResponseYou've already chosen the best response.1well, whats our slope to start with?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1the regression equation is: _______ the equation is already presented to you in slope intercept format. on the first line or 2

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1we are using test1 to predict test2 test1 is our independant variable, consider it an x and yes, thats the slope we want to interval about. what does this narrow our options to?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1explain your reasoning for that ...

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1when we are developing a confidence interval for a given sample, we take the sample data as a basis for the interval, we center the interval around the samples data. spose a given sample has a mean of 3, and we want some interval to determine a range for the populations mean: 3 + (something) defines the interval.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1we are trying to determine a interval for a slope our data in this case, is centered about the slope of the regression line. slope + (something) is our interval

theopenstudyowl
 one year ago
Best ResponseYou've already chosen the best response.0l honestly have no idea...

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1what is the slope of our regression line?

theopenstudyowl
 one year ago
Best ResponseYou've already chosen the best response.0the slope is 0.486

theopenstudyowl
 one year ago
Best ResponseYou've already chosen the best response.0oh, so would it be a and b..?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1since we are trying to determine a interval for a slope our data in this case, is centered about the slope of the regression line. slope + (something) , is our interval ^^^^ right, A or B is going to be the most feasible options

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1now the question does not correspond to the solutions, in that 2.048 doesnt seem to be related to a 95% confidence interval, but we have to accept it nonetheless.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1the standard error of the slope .... this part is formulaic. do you know the formula?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1then you really cant proceed until you study up on it ... you know have a focus to study on. when you can determine the formula for me, we can proceed.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1well, ive found some good news, we dont really need the formula since we have the output given to us

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1it appears that the standard error (standard deviation in some cases) of our test1 predictor is .... what does the output say?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1yep so, as long as the google isnt lieing to me :) slope + z(se) is our desired solution we know the slope, and the se ... and the z is the same regardless of our options

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1http://stattrek.com/regression/slopeconfidenceinterval.aspx?Tutorial=AP

theopenstudyowl
 one year ago
Best ResponseYou've already chosen the best response.0thanks! for the link

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1yep, thats how i study and make sure im at least on the right track.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1i wasnt sure if we needed to modify the deviation that was listed, or just use it. stat trek says to just use it

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1the 2.046 is better related to the z score of a 96% confidence interval 1.95 is the usual value for a 95% interval. so i dont know why they used the z value they did for this question but thats immaterial overall

theopenstudyowl
 one year ago
Best ResponseYou've already chosen the best response.0@Michele_Laino
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