Chapter 26, Problem 38E

To determine

To perform chi-square test.

Answer to Problem 38E

There is sufficient evidence to support the claim that the survival rate is independent on sex.

Explanation of Solution

Given:

  

The null and alternative hypotheses:

  $H_0$ : The survival rate is independent on sex.

  $H_a$ : The survival rate is not independent on sex.

Using excel,

  

  ${\chi }^2$ = 453.48 and P-value = 0

Decision: The p-value < 0.05, reject H0.

Conclusion: There is sufficient evidence to support the claim that the survival rate is independent on sex.