Mini Project 2 1. For females, what is the average Blood Vitamin D? 1. The shape of this is roughly bell shaped. There seems to be no outliers. The graph ranges from 30 to 80. The center of the graph is approximately 45-50. 2. For the average blood vitamin D, we are estimating the population mean for females. The symbol that represents this is µ. Contextually, this estimates the mean of blood vitamin D levels of females in the population. 2. The assumptions for population mean are the original distribution is normally distributed or n is greater than or equal to 30 and that the data is from an SRS (random sample). These are met with the Blood Vitamin D because the sample size is large enough and the data is from an SRS. 3. We are 95% that the population mean of blood vitamin D in females is between 50.22 and 57.09. 4. For females, what is the proportion who cooks food often? 5. For the question Òwho cooks food often?Ó, we are estimating the population proportion. This is represented by the symbol p. Contextually, this represents the fraction of the female population on the island that cooks food often. 6. The assumptions for the population proportion are there are at least 15 observed successes and 15 failures and that the data is categorical from a random sample. These are not met for this question because there are only 6 successes out of 30 trials. 7. We are 95% confident that the population proportion of females who cook food often is between 0.05686 and 0.3431. 8. The confidence intervals revealed that the average Blood Vitamin D level for females is in between the numbers 50.22 and 57.09. For whether or not they cook food often, the confidence interval revealed that 95% of the time, the chance that a female will say they cook food often is between 5.6% and 34.3%.