how many sampling units are there? 2. [24 points] A truck rental company has a f

Question

how many sampling units are there?

2. [24 points] A truck rental company has a fleet of 80 trucks. Each truck has 8 tires. are a total of 640 tires. The company seeks to estimate the total number of tin defective. The company picks a simple random sample without replacement of There hat are 5 trucks from the 80 trucks. For each sampled vehicle, the number of defective tires is recorded. The the total number of tires t following are the sample results: Vehicle truckl truck2 truck3 truck4 trucks Number of defective tires 2 (1) (8 points] What is a sampling unit? How many sampling units are there?

Explanation / Answer

Sampling unit: This is that element or set of elements considered for selection in some stage of sampling (same as the elements, in a simple single-stage sample). In a multi-stage sample, the sampling unit could be blocks, households, and individuals within the households.

So here sampling unit is truck

number of sampling unit is 1 i.e. trucks

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