stat_analysis

Question 1

Suppose we want to simulate the probability of flipping a fair coin 20 times, and getting a number greater than or equal to 15.

Use Numpy to do 10,000 simulations of flipping a fair coin 20 times, then see what proportion of the simulations are 15 or greater.

Answer 1

x = np.random.binomial(20, .5, 10000)

print((x>=15).mean())

Question 2

Use Numpy to get the standard deviation for a variable ‘distribution’

Answer 2

np.st(distribution)

Question 3

Given two DataFrames(early[‘assignment1_grade’], late[‘assignment2_grade’]), how do you use scipy to get the t-statistic and the pvalue?

Answer 3

from scipy import stats

stats.ttest_ind(early[‘assignment1_grade’], late[‘assignment_grade’])