USING R ---locate the pre-loaded MASS package, then load thedata frame cats within that packag. This provides data on sex, bodyweight (in kgs), and heart weight (in grams) for 144 householdcats. Load the MASS package with a call to library(\"MASS\"), andaccess the object directly by entering cats at the consoleprompt.
1. Fit a least-squares multiple linear regression model usingheart weight as the response variable and the other two variablesas predictors, and view a model summary. Write down the equationfor a least-squares multiple linear regression fitted model andinterpret the estimated regression coefficients for body weight andsex (of the cats in the above package). Are both statisticallysignificant? What does this say about the relationship between theresponse and predictors?
