What is the sampling design that the government initially planned?  A. simple random sampling  B. stratified random sampling  C. cluster sampling  D. multistage sampling   In the initial sampling design, what is the sampling frame?   A. List of food chains B. List of food chains in Mayor's Office C. List of streets D. List of food chain sizes

Linear Algebra: A Modern Introduction
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ISBN:9781285463247
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Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 28EQ
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What is the sampling design that the government initially planned?

 A. simple random sampling

 B. stratified random sampling

 C. cluster sampling

 D. multistage sampling

 

In the initial sampling design, what is the sampling frame?

 

A. List of food chains

B. List of food chains in Mayor's Office

C. List of streets

D. List of food chain sizes

The government studies the impact of the
quarantine on New York City's food chains by
interviewing its owners. In particular, the
government wants to determine the average
reduction in food chain's income months
after the quarantine. The govenment
obtained a list of food chains from the
Mayor's Office, with other information
including the food chain's business address
and its size. In terms of size, the food chains
were grouped into: small, medium, and large
food chains. Initially, the government
planned to select 5 food chains per size
classification. but the transportation cost is
high since the selected food chains are
scattered in NYC. Hence, the govenment
decided to change the sampling design by
dividing NYC by streets and randomly
selecting a sample of streets. Within each
selected streets, the government then
applied the initial plan of randomly selecting
food chains by size.
Transcribed Image Text:The government studies the impact of the quarantine on New York City's food chains by interviewing its owners. In particular, the government wants to determine the average reduction in food chain's income months after the quarantine. The govenment obtained a list of food chains from the Mayor's Office, with other information including the food chain's business address and its size. In terms of size, the food chains were grouped into: small, medium, and large food chains. Initially, the government planned to select 5 food chains per size classification. but the transportation cost is high since the selected food chains are scattered in NYC. Hence, the govenment decided to change the sampling design by dividing NYC by streets and randomly selecting a sample of streets. Within each selected streets, the government then applied the initial plan of randomly selecting food chains by size.
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