Read the passage below. Identify the sample, population and target property used in the study and comment on whether the evidence presented supports the conclusions drawn by the researchers.

In order to determine how much Australians spend on alcohol per month, Dan Murphys conducted a survey of 1000 randomly selected Dan Murphys customers. Those selected were offered a $100 Dan Murphys gift card for participating in the survey. As such, all 1000 selected customers agreed to participate in the survey. The survey asked participants to keep their receipts from all liquor store purchases for a one-month period. They found that the Average Australian household spends just under $130 a month on alcohol.