Table 3.

t-test calculation on the samples collected in February 2020.

S.No.	Samples	(xi − $\overline{x}$ )	(xi − $\overline{x}$ )2
1	209.66	−3.2	10.24
2	212	−0.86	0.7396
3	212	−0.86	0.7396
4	213.33	0.47	0.2209
5	213.33	0.47	0.2209
6	213.33	0.47	0.2209
7	214.33	1.47	2.1609
8	214	1.14	1.2996
9	213.33	0.47	0.2209
10	213.33	0.47	0.2209