Question #$1$:

Historical demand for a product is given in the table below

$\backslash$table$[[$Month$,$January,February,March,April,May,June$],[\backslash$table$[[$Demand$],[($Units$)]],12,11,15,12,16,15]]$

Part $($a$)$: Using simple linear regression analysis, calculate the regression equation for the preceding demand data.

Part $($b$)$: Using the result from part $($a$),$ calculate the forecast for July.

Can you also please do step by step how u got the answer