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(Solved) The NHLPA is a union representing all National Hockey League


The NHLPA is a union representing all National Hockey League players.  The union is conducting a survey to gauge players' opinions about a proposed change in the league's salary structure.


For each of the following proposed sampling schemes, identify (i) the type of sample that is obtained and (ii) any bias in the way the sample is chosen.


*Note: When conducting a survey by phone, by mail or even in person, there is always the possibility that someone will refuse to respond.  This cannot be avoided, even using proper sampling techniques.  For part (ii) of each question, only describe the potential bias (if any) introduced by the way the sample is selected.



(a) A random sample of five players from each of the league's 30 teams is selected.  These selected players are contacted by a union representative.


(b) The survey is sent to all players in the league.  Players are asked to respond by email.


(c) The survey is distributed to players attending an NHLPA meeting in New York.


(d) A random sample of seven NHL teams is selected.  Ten players from each of these ten teams are randomly selected and are contacted by telephone to respond to the survey.


(e) Two hundred players are randomly selected from a list of all NHL players.  Union representatives administer the survey in person to each of the selected players.


(f) The survey is posted on the NHLPA's private website.  Players are invited to email their comments to a union representative.


The NHLPA is a union representing all National Hockey League players. The union is conducting a survey

 

to gauge players' opinions about a proposed change in the league's salary structure.

 

For each...

 


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Oct 15, 2019

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