Q11 Vitamin D Deficiency and Cluster Headaches, Part I 12 Points According to research, about 42% of US adults are considered vitamin D deficient. A person is considered vitamin D deficient if their levels are lower than 20 ng/mL. Researchers who study episodic cluster headaches believe that there is a link between cluster headaches and a vitamin D deficiency. Write the corresponding hypotheses for the following research questions. You can use either words or symbols. If you elect to use symbols, you'll need to also define your symbol(s) in the context of the research question. Note 1: Make sure to include relevant numerical values. Note 2: If you provide both words and symbols, both must be correct to receive full credit. Q11.1 4 Points The researchers wish to determine whether a higher proportion of cluster headache patients are considered vitamin D deficient when compared to U.S. adults in general, based on a sample of cluster headache patients who are currently experiencing headaches. Enter your answer here011.2 4 Points The researchers wish to determine whether cluster headache patients have a vitamin D level of lower than 20 ng/mL, on average, based on a sample of cluster headache patients who are currently experiencing headaches. Enter your answer here 011.3 4 Points The researchers wish to determine if, given a sample of cluster headache patients who are currently experiencing headaches, and a sample of adults who do not suffer from cluster headaches, the proportion of cluster headache patients who are considered vitamin D deficient is higher than those who do not suffer from cluster headaches. Enter your answer here