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Posted: February 17th, 2022
use information (hooked up) to resolve the next questions utilizing Excel
(1) Get rid of duplexes and properties with costs over $850,000 from the info. Get rid of non- numeric variables and redundant variables from the info.
(2) Which variable correlates most strongly with value?
(three) Discover the regression line Y = β0 + β1x with the variable chosen within the earlier drawback. [The lm function in R or the Analysis ToolPak add-in for Excel will do ]
For the remaining issues, contemplate the next variables related to every property.
x1 = variety of bedrooms x2 = variety of bogs x3 = variety of tales
x4 = sq. footage
x5 = home has pool?
(four) Assemble the multivariable least squares mannequin with predictors x1, x2, x3, x4, x5. [First, con- vert x5 to binary.]
(5) Use a speculation take a look at to find out if the mannequin is beneficial for predicting house values at a stage α. State the p-value and interpret.
(6) Are any variables not helpful predictors of house value at significance stage α = zero.05? State the p-values of any rejected variables. What does this imply virtually?
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