Let x be the percentage of 16- to 19-year-olds not in school and not high school

Question

Let x be the percentage of 16- to 19-year-olds not in school and not high school graduates. Let y be the reported violent crimes per 1000 residents. Six small cities in Arkansas (Blytheville, EI Dorado, Hot Springs, Jonesboro, Rogers, and Russellville) reported the following information about x and y. x 23.9 19.3 17.6 14.9 19.0 17.5 12.7 4.2 9.1 1.3 0.8 3.6 Complete parts (a) through (e), given -112.2, -31.7, ?-2142.72, 2-277.03, Zry-642.32, and r~ 0.709 a) Draw a scatter diagram displaying the data. Tools Cloar All Soution4 Object Properties Select a Tool or Object to Begin Correct Help ebAssign graphing tool Submission Data (b) Verify the given sums Ex, ·Zr2,2y2, Ery, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Zr= 112.2 = 31.7

Explanation / Answer

f) First find least squares line.

y = 15.493 + 1.111x

So, when x = 23.2%

y = 15.493 + 1.11123.2

y = 10.28

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