NZ Level 8 (NZC) Level 3 (NCEA) [In development]
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Target Population

Interactive practice questions

A company wants to know whether on-site day care would be considered a valuable employee benefit. They randomly selected $25$25 employees and asked their opinion about on-site day care. The target population for this survey should be:

only those with children at the company

A

all management and senior executive of the company

B

all people who work in the street the company is located on

C

all employees of the company

D

only those with children at the company

A

all management and senior executive of the company

B

all people who work in the street the company is located on

C

all employees of the company

D
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A farmer saw some worms in his cotton field. Before deciding whether or not to spray his entire field with a particular insecticide he decides to check the effectiveness of the spray so he selects $30$30 plants from his own farm to test. The target population for this should be:

A manufacturer received a large shipment of bolts. The bolts must meet certain specifications before they are able to be passed onto retailers. Before accepting the delivery the manufacturer selected $40$40 bolts and determined whether or not each met the specifications. The target population for this should be:

A construction company wants to know the opinions of residents in a certain suburb on the construction of a new road through the area. The company surveys $35$35 residents from the suburb. The target population is:

Outcomes

S8-2

Make inferences from surveys and experiments: A determining estimates and confidence intervals for means, proportions, and differences, recognising the relevance of the central limit theorem B using methods such as resampling or randomisation to assess

91582

Use statistical methods to make a formal inference

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