need help with homework and please explain on rounding the slope to four decimal places . thank youAnswers
Step 1: Find X Y and XP as it was done in the table below. Χ. Χ 118 130 Χ.Υ 10384 9880 8120 12103 8400 7597 8140 13924 16900 13456 17689 116 133 112 12544 107 11449 110 12100 108 7452 11664 105 6930 11025 157 16171 24649 Step 2: Find the sum of every column: ΣΧ = 1196, ΣΥ = 783, ΣΧΥ = 95177, ΣΧ? = 145400 Step 3: Use the following equations to find a and b: - ΟΙ 0.7 ΣΥΣΧ? - ΣΧΣΧΥ 783 - 145400 – 1196 - 95177 - η·ΣΧ? - (ΣΧ)? 10.
.
145400 – 11962 Η η·ΣΧΥ – ΣΧ.ΣΥ 10 - 95177 – 1196 - 783 , η-ΣΧ- (ΣΧ)? 10. 145400 – (1196)? 6 = – - 0.649 Step 4: Substitute a and b in regression equation formula 9 = = α + 0.7 6.1 + 0.649.
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