hello please help thank you please verify normality if possible as well

2. WebMD states that taking vitamin D with calcium helps the body to absorb calcium, resulting in lower rates of bone deterioration than just taking calcium alone. One way to measure bone deterioration is to count the average number of bone fractures as people age. A long-term study was done on a group of people from when they were 50 years old until they turned 70 years old (or until they died- in the case of people who died before age 70). A random sample of 100 people were assigned to take calcium daily and another randomly selected group of 105 people were assigned to take vitamin D with calcium daily. The results of the study (see table below) show the average number of fractures as well as the standard deviations for each group. Do the results of the study indicate that taking vitamin D with calcium results in a lower average number of fractures than the individuals who took calcium alone? Use a 1% level of significance along with the rejection region method. Vitamin D with Calcium Group Calcium Group (Number of Fractures) (Number of Fractures) Mean 3.3 3.82 Standard deviation 73 73