Assume that the final scores in a statistics unit follow a normal distribution with mean 72 and standard deviation 10. Use SPSS to find (and present the code as part of your solution): [a] the proportion of the scores less than 50. [b] the proportion of the scores larger than 65 but less than 85. [c] the minimum score for being in top 10%. [d] the probability for the average of 5 scores to be larger than 80. ================================================= Question 2. People with diabetes must manage their blood sugar levels carefully. They measure their fasting plasma glucose (FPG) several times a day with a glucose meter. Another measurement, made at regular medical checkups, is called HbA. This is roughly the percent of red blood cells that have a glucose molecule attached. It measures average exposure to glucose over a period of several months. The Excel file called Diabetes has data on both measures of glucose level in diabetics for 18 diabetics five months after they had completed a diabetes education class. [a] Construct a histogram to study the FPG variable, with brief comments. [b] Find the correlation coefficient between the two variables FPG and HbA. [c] Present a scatter plot of FPG vs HbA with the least-squares equation and brief comments. [d] Identify one outlier in the y direction and one outlier in the x direction, and remove them from the dataset. Find the correlation between FPG and HbA, and draw a scatter plot of FPG vs HbA with the least-squares equation. How does the correlation and the scatter plot change after the two outliers have been removed? Why? [e] Compare the two least-squares equations with their R square values, and identify which one is better. Why? [f] Which subject has a particularly high FPG value and which subject has a particularly low FPG value relative to the pattern for the remaining subjects after the two outliers have been removed? Why? Do you want your assignment written by the best essay experts? Then look no further. Our teams of experienced writers are on standby to deliver to you a quality written paper as per your specified instructions. Order now, and enjoy an amazing discount!!
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