Double check your answer i will upvote!! Please use excell!!

Investors are always reviewing past pricing history and using it to influence their future investment decisions. An investor, looking for a promising return, analyzes the monthly stock price data of a pharmaceutical firm from June $2017$ to May $2020.$ The accompanying file contains the data.

Click here for the Excel Data File

Q$-1.$ Estimate the linear, the quadratic, and the cubic trend models.

Note: Negative values for regression coefficients should be indicated by a minus sign. Round final answers to $3$ decimal places.

$\backslash$table$[[$Predictor Variable,Linear,Quadratic,Cubic$],[$Constant$,,,],[t,,,],[t^2,,,],[t^3,,,]]$

a$-2.$ Determine the preferred model.

based on the value of

b$.$ Use the preferred model to make a forecast for June $2020.$

Note: Do not round coefficient estimates. Round final answers to $2$ decimal places.

Forecast for June $2017$