A lot of people, 221 to be exact, came to the big neighbourhood cookout party, 4. (4 ana urought some food and drinks. The social function had passed quite enjoyably, up until a day later when several people who have been to the party got sick with stomach flu. Since the the sicknesses are just after the event, you suspect there might have been something in the party that caused this, however not everyone who went got sick. You, the local neighbourhood statistician, are interested in what happened. You go and ask the sick people what they had ate, and one thing almost all sick people had in common was the egg salad. You think you might be onto something here, and call everyone who attended to learn if they had the egg salad or not and whether they had the stomach flu or not. The data are as follows. At alpha .05, can we say there is enough evidence to conclude that the egg salad is the culprit? Had the egg Didn't have the egg salad salad sick 33 9. 172 non-sick

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A lot of people, 221 to be exact, came to the big neighbourhood cookout party,
anu brought some food and drinks. The social function had passed quite enjoyably, up
until a day later when several people who have been to the party got sick with stomach
flu. Since the the sicknesses are just after the event, you suspect there might have been
something in the party that caused this, however not everyone who went got sick. You,
the local neighbourhood statistician, are interested in what happened. You go and ask the
sick people what they had ate, and one thing almost all sick people had in common was
the egg salad. You think you might be onto something here, and call everyone who
attended to learn if they had the egg salad or not and whether they had the stomach flu or
not. The data are as follows. At alpha .05, can we say there is enough evidence to
conclude that the egg salad is the culprit?
Had the egg Didn't have
salad
the egg
salad
sick
33
9.
non-sick
172
Transcribed Image Text:A lot of people, 221 to be exact, came to the big neighbourhood cookout party, anu brought some food and drinks. The social function had passed quite enjoyably, up until a day later when several people who have been to the party got sick with stomach flu. Since the the sicknesses are just after the event, you suspect there might have been something in the party that caused this, however not everyone who went got sick. You, the local neighbourhood statistician, are interested in what happened. You go and ask the sick people what they had ate, and one thing almost all sick people had in common was the egg salad. You think you might be onto something here, and call everyone who attended to learn if they had the egg salad or not and whether they had the stomach flu or not. The data are as follows. At alpha .05, can we say there is enough evidence to conclude that the egg salad is the culprit? Had the egg Didn't have salad the egg salad sick 33 9. non-sick 172
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