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Ka Ka

17 de maio de 2020 17:25

A regression analysis between sales (y in $1000) and advertising (x in $100) resulted in the following least-squares line: ˆy = 82 + 7x. Given this information, if advertising costs were $900, what could we reasonably expect the amount of sales (in dollars) to be?

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DreamyBird

17 de maio de 2020 18:02
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Hi Ka Ka

i don't really understand the concept but let me help you⬇⬇

https://www.khanacademy.org/math/ap-statistics/bivariate-data-ap/least-squares-regression/v/calculating-the-equation-of-a-regression-line

https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-center-quantitative/v/statistics-intro-mean-median-and-mode

searching in your homepage

Hope this helps,please explain more for futher info!⬇⬇

Kind regards,

Ximena.

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