Math 240

zy Section 8.2 - MAT 240: Applied S! X Course Hero X + om/zybook/SNHUMAT240Master1/chapter/8/section/2 MAT 240: Applied Statistics home > esis test for the difference between two population proportions zyBooks catalog LLENGE IVITY 8.2.1: Hypothesis testing for two population proportions (left-tailed z-test). Jump to level 1 The manager of a coffee shop is trying to determine if drive-through customers buy fewer items than customers who come into the shop. The manager randomly samples both populations and calculates the proportion of customers in each that buy three or more items. The results of the data collected are shown below. What are the population parameters? Pick In-shop Drive-through Successes 51 Successes 64 What is the level of significance? Ex: 0.12 Observations 89 Observations 142 p-hat_1 0.573 p-hat_2 0.451 What is the null hypothesis Ho? Pick v Confidence Level 95% z-score -1.805 What is the alternative hypothesis Ha? Pick v p-value 0.0359 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 drive-through customers buy fewer items than in-shop customers