1. Classify asindependent or dependent samples: The heart rates of one hundredca

Question

1. Classify asindependent or dependent samples: The heart rates of one hundredcats, and the heart rates of one hundred dogs. (Points :2)
       independent
       dependent



2. Classify as independent or dependentsamples: Average price of thirty HDTVs on Amazon, and average priceof another thirty HDTVs on eBay. (Points :2)
       independent
       dependent


3. A population of 100 volunteers flip a coin1000 times; then those volunteers conduct a second trial, in whichthey again flip their coins 1000 times. The number of headsobserved by each volunteer in each trial has a binomialdistribution. Can the z test be used to evaluate thedifference in the mean number of heads in each trial?(Points :3)
       Yes
       No

Explanation / Answer

(1) independent (2) independent (3) Yes

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