13 May (1) A new drug has been developed to control a
(1) A new drug has been developed to control asthma in children which has an 82% probability of success. Based on the 1000 children enrolled in this follow-up study, answer the following questions.
a. What is the probability of seeing fewer than 790 successful cases?
b. What is the probability of seeing 85% or more successful cases?
(2) A correlation analysis was performed to determine the relationship between number of respiratory illnesses and mold levels. Interpret the following results:
r = 0.44 p = 0.01
(3) A linear regression analysis was performed to determine distance between the residence and highway is a significant predictor for the number of respiratory illness. Interpret the following results:
y = 170.3 + (-0.04)x
95% confidence interval for the beta: (-0.12, 0.04)
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