In a random sample of 70 children from Illinois, 23 were undernourished. Use these sample data to answer the following questions.

Use the five-step hypothesis testing procedure outlined below to determine if there is evidence that the proportion of all children in Illinois who are undernourished is different from 0.5. Use Minitab. If assumptions are met, use the normal approximation method. You should not need to do any calculations by hand, other than checking assumptions. Remember to include all relevant Minitab output and identify your answers to each step.

Step 1: Check assumptions and write hypotheses

Step 2: Calculate the test statistic

Step 3: Determine the p-value

Step 4: Decide to reject or fail to reject the null

Step 5: State a “real world” conclusion