Extruder {gpk}

Understanding effect of manufacturing conditions on product characteristics

Description

Extrusion is a process in which dough-like raw material is pushed through a machine and the machine puts out product in desired form, followed by some finishing touches. One important characteristic of an item produced is its weight. If weight is too low, product may be weak. If weight is too high, it may mean wastage of raw material. Hence a manufacturer is keen to know the relation between product weight and various parameters of manufacturing process. In a particular factory 3 parameters likely to affect weight were monitored. These were Extruder RPM, current and conveyer speed.

Usage

data(Extruder)

Format

A data frame with 49 observations on the following 4 variables.

WEIGHT

Weight of product

EXTRUDER_RPM

Extruder speed \[RPM - revolutions per minute\]

CURRENT

Current

Conveyer_Speed

Conveyer speed

Details

Fit a multiple regression model and carry out the residual analysis. Also, perform the identification of outliers.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Examples

data(Extruder)