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ID: 3316080 • Letter: C

Question

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Explanation / Answer

2) Large

1) 3% chance; Yes, Such a result would normally be considered statistically significant.

3) The p-value measures the probability that the outcome of a clinical trial would occur by chance alone if the treatment had no effect.

4)

a) Brightness of oncoming cars headlights and the distance from the oncoming car is negatively correlated: As the distance decreases, brightness increases.

b) The number of home runs hit and the water bill are UNCORRELATED.

c) Damage in a city at the epicenter of an earthquake and ritcher scale reading of an earthquake are positively correlated. Greater the ritcher scale reading means greater the damage or greater the damage means higher the ritcher scale reading.

d) A golfers tournament ranking and her scores are positively correlated. Greater the scores, better the ranking.