of the fish 43 4 38 4

Question

Question

math Statistics-And-Probability

Answer 1

Answer #1

applying chi square test:

Observed	Oi	A	B	C	D	Total
	male	47	42	47	37	173
	female	43	48	38	46	175
	Total	90	90	85	83	348

Expected	E_i=row totalcolumn total/grand total*	A	B	C	D	Total
	male	44.74	44.74	42.26	41.26	173
	female	45.26	45.26	42.74	41.74	175
	Total	90	90	85	83	348

chi square χ²	=(O_i-E_i)²/E_i	A	B	C	D	Total
	male	0.1140	0.1680	0.5327	0.4401	1.255
	female	0.1127	0.1660	0.5266	0.4351	1.240
	Total	0.227	0.334	1.059	0.875	2.495

from above test statistic =2.495

p value =0.4762

Answer 2

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