Question 1- For the following set of data, calculate (a) sample mean, (b) median, (c) mode, (d) standard deviation, (g) 1st quartile, (h) 3rd quartile, (i) interquartile range.

{3,6,5,4,6,5,9,10,11,7,9}

Please show all calculations

Question 2- A clinical trial (n = 35 patients) has been performed in which the volume of distribution of a new anti-diabetes drug has been calculated as 10.21.9 L.

Calculate the 95% and 99% confidence limits of the mean value (assuming that the data originated from a normal distribution).