Stating in terms of the model parameters the hypotheses that you are testing write down a test statistic to investigate whether the mean level of the histamine for product (A) is less than for Product (B) ...

Stating in terms of the model parameters the hypotheses that you are testing write down a test statistic to investigate whether the mean level of the histamine for product (A) is less than for Product (B). Find the corresponding p-value and draw conclusions. 

Product (A) : 16.61,15.38,15.70,17.58,16.66,17.13.
Product (B) : 18.66,19.52,16.98,18.19,17.20.