ChatGPT $3\mathrm{.}5$

User

Week number

$1222$

$2.238$

$3.286$

$4.264$

$5.293$

$6.320$

$7.352$

$8.367$

$9.398$

$10.381$

$11.420$

$12.444$

$13.467$

$14.472$

$15.505$

$16.520$

$17.527$

$18.542$

Compute a linear trend line for freight car loadings. $($Use of Excel's Trendline, with display Equation on chart option, is

recommended$).($Round the final answers to $3$ decimal places.$)$

Y

b$.$ Use the trend equation to predict loadings for weeks $19$ and $20.($Round the final answers to $2$ decimal places.$)$

Loadings for week $19$

Loadings for week $20$

c$.$ The manager intends to install new equipment when the volume reaches $750$ loadings per week. Assuming the current trend

continues, the loading volume will reach that level in approximately what week? $($Round the final answer to the nearest whole week.$)$

Approximate week to reach level