Bob who is different in many ways measures time in days


1) American On Line ran a poll of its Internet subscribers and asked this question - Should the World Trade Center towers be rebuild?" among the 1,304.240 response : 768, 731 said Yes and 286, 756 answered NO and 248,753 said that they were "undecided". Being that this sample is extremely large can the responses be considered to be representative of the population of the United States?

2) Visa wants to conduct a survey of credit card usage among the full-time students who attend college. What is a good procedure for obtaining a sample of each type: random, systemic, convenience stratified, cluster.

3) a) the weights of people in a sample of elevator passengers

b) a movie critic's ratings of "must see; recommended; not recommend; don't even think about going"

c) a movie critic's classification of "drama, comedy, adventure"

d) Bob, who is different in many ways measures time in days, with 0 corresponding to his birth date. The day before his birth is -1 , the day after his birth is +1 and so on . Bob has converted the dates of major historical events to his numbering system. What is the level of measurement of these numbers.

IDENTIFY WHICH OF THE ABOVE IS Nominal, Ordinal, Interval, Ratio level of management.

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