Test each of the following by performing the steps in hypothesis testing

Test each of the following by performing the steps in hypothesis testing.

1. 
   The mean sales of 50 sales executives who showed aggressiveness in e-marketing was P6,820,000 with a standard deviation of P250,000, while 50 sales executives who showed aggressiveness in the social media has a mean sales of P6,500,000 with a standard deviation of P280,000. Test the hypothesis that sales executives who showed aggressiveness in e-marketing have higher sales than the other sales executives at 0.05.
   

2. 
   The time coding an algorithm by 16 programmers from one company showed a mean time of 107 minutes and a standard deviation of 10 minutes, while the time by 14 programmers from another company showed a mean time of 112 minutes and a standard deviation of 8 minutes. Is there a significant difference between the two groups at 0.01.