Math 240

Zy Section 8.2 - MAT 240: Applied St X Course Hero X New Tab X earn.zybooks.com/zybook/SNHUMAT240Master1/chapter/8/section/2 My library > MAT 240: Applied Statistics home > 8.2: Hypothesis test for the difference between two population proportions zyBooks catalog ? Help/FA CHALLENGE ACTIVITY 8.2.3: Hypothesis testing for two population proportions (one-tailed z-test) V Jump to level 1 1 An advertising firm is trying to determine if a higher proportion of interactions from online advertising result in N ( sales compared to the proportion of interactions from television advertising. The firm examines a random sample of each type of interaction. The results of the data collected are shown below. What are the population parameters? The proportion of all interactions in each category that result in sales Online Television Successes 176 Successes 246 What is the level of significance? Ex: 0.12 Observations 500 Observations 750 phat 1 0.352 p-hat_2 0.328 What is the null hypothesis Ho? Pick v Confidence level 90% What is the alternative hypothesis Ha? Pick v z-score 0.879 p-value 0.1894 Should Ho be rejected or does Ho fail to be rejected? |Pick What conclusion can be drawn from the data? Pick v evidence exists to support the claim that the proportion of sales generated by online advertising is higher than the proportion generated by television advertising