Of 211,693 students who took an exam 102,598 of them were female and 109,095 of them were male.

Of 211,693 students who took an exam 102,598 of them were female and 109,095 of them were male. Estimate the difference in proportion of female students taking the exam versus male students taking exam using a 90% confidence level. How do I find the level of significance used, Z score corresponding to desired confidence level, error bound of proportion.