nstructure.com/courses/177804/quizzes/secured#lockdown Calcium Is an essential mineral mat regulates the Treart, is Important for blood Clotting and for building healthy bones. While calcium is contained in some foods, most adults do not get enough calcium in their diets and take supplements. Unfortunately some of the supplements have side effects such as gastric distress, making them difficult for some patients to take on a regular basis. A study is designed to test whether there is a difference in mean daily calcium intake in adults 60 years of age with normal bone density, adults with osteopenia (a low bone density which may lead to osteoporosis) and adults with osteoporosis. Adults 60 years of age with normal bone density, osteopenia and osteoporosis are selected at random from hospital records and invited to participate in the study. Each participant's daily calcium intake is measured based on reported food intake and supplements. The data can be found in the file Calcium.xisx 4, . Use this data file to answer the parts that follow. Hide Question 25 1 pts Part 1: In order to check the normality requirement, what would I need to do? I only need to do a histogram for the group with normal bone density. I would need to do a histogram for the difference between the groups