detergent: Laundry Detergent Analysis

In frank113/cmu202: Necessary Packages and Data for 36-202 at Carnegie Mellon University

Description

Laundry detergent manufacturers often make advertising claims that their product gets clothes the ‘whitest and brightest.’ To test such claims, Consumer Reports conducted a study of five laundry detergents: Three leading national brands (Tide, Cheer, and Woolite), one generic brand, and one ‘eco’ brand made with eco-friendly ingredients). One hundred fifty identical sheets were equally soiled and then randomly assigned to be washed in different Brands and different Temperatures, as follows: Thirty sheets were washed per brand, 10 with cold water, 10 with warm water, 10 with hot water. After washing, the Whiteness was measured using laser equipment (higher score = more white).

Usage

data("detergent")

Format

A dataframe with 150 rows and 3 columns.

Brand

The brand of detergent:

• generic

• Woolite

• Tide

• eco

• Cheer

Whiteness

A whiteness score for each sheet after treatment. A higher score indicates a whiter color.

Temp

The category of temperature of the washing of the sheet.

• 0Cold

• 1Warm

• 2Hot

Note

The documentation does not auto-update. If one changes the base file, this documentation will no longer remain accurate.

36-202 Homework Data.

Author(s)

Gordon Weinberg [e-mail]

frank113/cmu202 documentation built on July 17, 2020, 9:31 p.m.