need help on this stat question

Fortest of hypothesis problem(if you want to use),

1. Set up the null and alternate hypothesis
2. Calculate the test statistic.
3. Draw the curve and find the critical value(s).
4. Make a decision.
5. Write the conclusion in terms of the problem

Drinking tea appears to offer a strong boost to the immune system. In a study ,it was observed that production of interferon gamma, a molecule that ghts bacteria, viruses, and tumors, appears to be enhanced in tea drinkers. In the study, eleven healthy non-tea drinking individuals were asked to drink ve or six cups of tea a day, while ten healthy nontea- and non-coffee-drinkers were asked to drink the same amount of coffee, which has caffeine but not the Ltheanine that is in tea. The groups were randomly assigned. After two weeks, blood samples were exposed to an antigen and production of interferon gamma was measured. The results are shown in the following data. The question of interest is whether the data provide evidence that production is enhanced {mean is more} in tea drinkers. than coffee drinkers. Both populations are not normally distributed , but they both have the same shape. Use an appropriate test. Use 10% signicance level. Tea 5 11 13 18 20 47 48 52 55 56 Coffee 4 4 3 11 15 16 21 21 38 52