Home / Expert Answers / Statistics and Probability / don-39-t-know-how-to-solve-a-powder-diet-is-tested-on-42-people-and-a-liquid-diet-is-tested-on-35-di-pa658

# (Solved): Don't know how to solve A powder diet is tested on 42 people, and a liquid diet is tested on 35 diff ...

Don't know how to solve

A powder diet is tested on 42 people, and a liquid diet is tested on 35 different people. It is of interest whether the liquid diet yields a different mean weight loss than the powder diet. The powder diet group had a mean weight loss of $$\vec{x}_{2}=41.05$$ pounds with a standard deviation of $$5.10$$ pounds. The liquid diet group had a mean weight loss of $$\bar{x}_{1}=40.14$$ pounds with a standard deviation of $$2.93$$ pounds. In the past, the standard deviation for weight loss with the powder diet has been $$4.02$$ pounds and $$5.1$$ pounds for a liquid diet. Use a $$.05$$ level of significance and perforn a hypothesis test. Round all answers to 4 places where possible. Step (1) Determine the null and altemative hypotheses. Step (2) Determine the test statistic and p-value.

We have an Answer from Expert