A survey was conducted to determine how many New York city children (age 12 and

Question

A survey was conducted to determine how many New York city children (age 12 and under) have access to guns in their homes New York City is divided in to 59 districts. The researchers randomly selected two districts (Bronx and Flushing). They then selected 25 primary schools in each of these two districts. Questionnaires were distributed to the parents of all children in these 50 schools. What is the secondary sampling unit? Describe a source of bias in this study. Explain the expected direction of this bias.

Explanation / Answer

Hi, I am Waqar. Please find the solutions below:

a> This is a two-stage clustered sample.

b> Primary units is the children under or equal age 12 having access to guns.

c> Secandory sampling units are slecting two districts at random and surveying 25 schools.

Happy to help you

Waqar

Happy Chegging

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