Keyword Analysis & Research: why do we use null and alternative hypothesis

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why do we use null and alternative hypothesis	0.1	0.5	5000	15	45
why	0.98	0.7	6685	85	3
do	0.95	0.2	7377	19	2
we	1.98	0.6	4026	90	2
use	0.79	0.4	9706	52	3
null	1.88	0.3	7939	92	4
and	1.42	0.6	8208	30	3
alternative	0.7	0.6	5787	78	11
hypothesis	0.14	0.3	4080	5	10

Keyword	CPC	PCC	Volume	Score
why do we use null and alternative hypothesis	1.02	0.9	586	44