Question

i need #13 in detail please, see all photos for data

13. Suppose that you are a journalist that has been asked to summarize the results of this study. Give a brief summary of the results so that a friend who is not taking a statistics course would understand it. Hint: What did the confidence intervals reveal? Give an interpretation of the intervals, but breakdown the terms population mean, population proportion and confidence.

Answer 1

13. We are 95% confident that the true percentage of the females that exercise regularly is betwwen 50.60% and 85.27% i.e. We are 95% confident that more that 50% of females exercise regularly. We also see this from bar diagram where we see that almost 20 females exercise regularly whereas almost 9 females do not exercise regularly.

We are 95% confident that true average height of females is between 162.05 in and 168.63 in. Hence we are 95% confident that true average height of females is greater than 162 in. From the histogram of height we see that the distribution of height is negatively skewed and height of maximum females is 170 in (approx).