Option C is the correct answer here.
Option C is +/- 2.101
Here in the two tailed independent t test here the values of t and alpha is given and when we insert the values in the formula answer will come out in this.
Formulae is
The given things in question is-t(df=15)= 0.1
After putting the value of this while Calculating it.
T= X1- X2/SE
here t= 0.2 and just calculate it for X1 and X2 the value of SE comes to be n1 -1 and N2- 2 sqare root of(S sqare/Na - S sqare/ Nb)/ Ma - Mb
The value comes to be -
+/- 2.101
Thanks
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