Question 1178651
Here's how to formulate the null hypotheses to match the given alternative hypotheses:

**1. Proportion of Obese Children:**

* **H0:** The proportion of obese children ages 3-10 is less than or equal to 40%.
    * In symbolic form: H0: p ≤ 0.40

**2. Mean Amount of Dispensed Coffee:**

* **H0:** The mean amount of dispensed coffee of a new vending machine is greater than or equal to 300ml.
    * In symbolic form: H0: μ ≥ 300