Math 240

X zy Section 8.2 - MAT 240: Applied St X Course Hero x New Tab X + zybooks.com/zybook/SNHUMAT240Master1/chapter/8/section/2 library > MAT 240: Applied Statistics home > zyBooks catalog Hypothesis test for the difference between two population proportions CHALLENGE ACTIVITY 8.2.2: Hypothesis testing for two population proportions (right-tailed z-test) Jump to level 1 A pharmaceutical company is trying to determine if a new drug is more effective than the current standard drug. The company tracks random samples of patients on each drug and calculates the proportion that see an improvement in symptoms after six months. The results of the data collected are shown below. What are the population parameters? The proportion of all patients on each drug that see improvements in symptoms Old drug New drug Successes 653 Successes 352 Observations 1000 Observations 500 What is the level of significance? Ex: 0.12 p-hat_1 0.653 p-hat_2 0.704 What is the null hypothesis Ho? Pick Confidence Level 95% z-score 1.98 What is the alternative hypothesis Ha? Pick p-value 0.0239 Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? Pick evidence exists to support the claim that more patients on the new drug see improvements in symptoms than patients on the current drug