Answer to Question #44255 in Statistics and Probability for Bebe Cummins
a. What is p-hat, the weighted average of the proportion?
b. What is the null hypothesis if comparing mothers to fathers?
c. What is the p-value of the two-sided test?
d. At the 0.05 level of significance, can we conclude that fathers and mothers are not equally likely to develop PTSD after stress?
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