1.The degree of learning in mathematics is sought in 2 schools of the same level that use different teaching methods. To apply the t-test for the difference between two means, it must be possible to assume that both populations have the same variance. Therefore, before carrying out the test on the means, it is advisable to carry out a test on equality of variances of the 2 populations. By doing this test, a random sample of 30 students is taken in each of the 2 schools and the following results are obtained:

School 1

=

= .

₁ = 1.3

School 2

=

= .

₁ = 1.41