In testing whether the means of two normal populations are equal, summary statistics computed for two independent samples are as follows:

n1= 35,X1

= 5.65,s1= 1.60.

n2= 40,X2

= 7.08,s2= 1.65.

Assume that the population variances are equal. Then the standard error of the sampling distribution of the difference in the sample means is equal to:

Group of answer choices

0.976

0.145

0.377

0.458