In Exercise 48, you could have checked for a difference in the chances of survival for men
Question:
In Exercise 48
a) Find the z-value for this approach.
b) Show that the square of your calculated value of z is the value of x2 you calculated in Exercise 48.
c) Show that the resulting P-values are the same.
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Female Male Total Alive 343 367 710 Dead 127 1364 1491 Total 470 1731 2201
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a H 0 The proportion of females who survived is the same as the proportion of males who survived p F ...View the full answer
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Related Book For
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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