1. In the US, the distribution of albumin levels in cerebrospinal fluid is 29.5 ± 2.1 mg/100ml.
a) What proportion of the mean lie above 35mg/100ml?
b) What is the albumin level corresponds to the upper 5% of the distribution?
Question 2:
In a study designed to test whether or not there is a difference between the average heights of adult females born in two different countries, random samples yielded the following results: in the first country the number of subjects was 120, the mean and standard deviation 62.7 ± 2.5 inches; in the second country these values were 150 and 61.8 ± 2.62 inches, respectively. Is there any statistically significant difference between the two groups? Write all steps as learned in class for your statistical analysis.