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I want to carry out an investigation to know what methodological strategy is most effective in...

I want to carry out an investigation to know what methodological strategy is most effective in academic performance in Mathematics. For this we consider two populations of students who completed the last year at a school, both populations they were subjected to different teaching-learning strategies. By experiences Previous researchers knew that population scores were normally distributed with variances 40 and 60, respectively. A random sample of size 10, with a mean equal to 15, is drawn from population 1, and a sample of size 12 with mean equal to 17, is drawn from population 2. With α = 0.05. Use the p-value of the test to find out if: Are there significant differences between the two strategies? Explain and justify.

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