D2L Assignment_4 X D2L Homepage - N X D2L Assignment # X D2L Week 11 - Tear X D2L Outline - F22 - X G Mark Calculate X G Plan & Schedux Home | Micros X W HTM2220 - W X + C courselink.uoguelph.ca/d21/le/content/771313/viewContent/3331212/View Update : ASSignment 4 W KY ED 2 of 3 - + Automatic Zoom > > E 8 Exercise 3: Suppose a market analyst wants to determine the difference in the average price of 4 L of milk in Vancouver and Montreal. To do so, he takes a telephone survey of 31 randomly selected consumers in Vancouver. He first asks whether they have purchased 4 L of milk during the past two weeks. If they say no, he continues to select consumers until he selects n = 31 people who say yes. If they say yes, he asks them how much they paid for the milk. The analyst un- dertakes a similar survey in Montreal with 31 respondents. Using the resulting sample information that follows, compute a 99% confidence interval to estimate the difference in the mean price of 4 L of milk between the two cities. Assume the population variance for Vancouver is 0.12 and the population variance for Montreal is 0.06. Vancouver Montreal $3.77 $3.48 $3.59 $5.31 $5.69 $5.69 3.94 3.30 3.59 5.50 5.50 5.69 3.71 3.77 3.53 5.21 5.40 5.31 3.83 4.12 3.65 5.69 5.21 5.40 4.59 3.83 3.77 5.69 6.16 5.97 4.24 3.77 4.01 5.40 5.69 5.21 3.71 3.89 4.36 5.21 5.31 5.78 3.65 4.01 3.89 5.78 6.16 5.50 4.06 4.01 4.12 6.16 5-31 5.97 3.89 4.18 3.94 5.69 5.40 5-59 4.01 5.78