Percentages Table

Gender	Dead	Survived	Total	Count
Female	26.8	73.2	100	425
Male	80.7	19.3	100	762

2-sample test for equality of proportions without continuity correction

X-squared = 334.3 df = 1 p-value < 2.2e-16

Alternative hypothesis: two sided

99 percent confidence interval:

-0.6053344 -0.4723682

Sample Estimates:

0.2682353 0.8070866

What is the null hypothesis and alternative hypothesis in term of parameters? What is the test statistics? (Z-test and chi-square test) Do we reject the hypothesis? What is the conclusion?