Task 2: A marketing manager for a certain well-known drinks manufacturer was interested in the therapeutic benefit of certain soft drinks for curing hangovers. He took 15 people out on the town one night and got them drunk. The next morning as they awoke, dehydrated and feeling as though they’d licked a camel’s sandy feet clean with their tongue, he gave five of them water to drink, five of them Lucozade (in case this isn’t sold outside the UK, it’s a very nice glucose-based drink) and the remaining five a leading brand of cola

(this variable is called drink). He then measured how well they felt

(on a scale from 0 = I feel like death to 10 = I feel really full of beans and healthy) two hours later (this variable is called well). He wanted to know which drink produced the greatest level of wellness. However, he realized it was important to control for how drunk the person got the night before, and so he measured this on a scale from 0 = as sober as a nun to 10 = flapping about like a haddock out of water on the floor in a puddle of their own vomit. The data are in the file HangoverCure. dat. Conduct an ANCOVA to see whether people felt better after different drinks when controlling for how drunk they were the night before.2