Influence of Methods of Nanomaterial Testing on Product Supply and an IoT-Based Solution for Making a Perfect Choice

Table 1

General linear model: factors and their levels.

Factors	Type of factor	Varying level	Level 1	Level 2
Male patient (age in years)	Fixed	2	42	64
Test method (choice of testing)	Fixed	2	App (mobile app)	Audiometry (conventional testing method)
Female patient (age in years)	Fixed	2	48	73
Hearing loss (classification)	Fixed	2	Minor	Major

Method of factor coding (-1, 0, +1).