A medical researcher wants to study how male and female rats react to the inject
ID: 3206813 • Letter: A
Question
A medical researcher wants to study how male and female rats react to the injection of a certain toxic substance. Eighty-two of 200 male rats and 58 of 200 task. Calculate the sample statistics pi^_1 (male rats) and pi^_2 (female rats). For H0: pi_1 - pi_2 = 0 vs. Ha: pi_1 - pi_2 > 0 with alpha = 0.05, calculate the test statistic. In Question 2, find the P-value and make a decision about Ho. Use data from Question 1 to construct a 95% confidence interval for pi_1 - pi_2. In Question 2, change the alternative hypothesis to Ha: pi_1 - pi_2 notequalto 0. Calculate the P-value and make a decision about Ho.Explanation / Answer
1)
in statistics represent Proportion
hence
1 (male proportion ) =82/200= 0.41
2 = female proportion) =58/200=0.29