Questions: 4. You want to investigate the voter's opinions on an upcoming issue for your city. The city that you live in has 12 different neighborhoods. You randomly select 10 registered voters from each neighborhood and contact them to ask for their opinion. 5. You work for a company as a quality control specialist. You want to check the current production of products for defects. You locate the finished products for the day and inspect the first 20 items you happen to see.

4. You want to investigate the voter's opinions on an upcoming issue for your city. The city that you live in has 12 different neighborhoods. You randomly select 10 registered voters from each neighborhood and contact them to ask for their opinion.

5. You work for a company as a quality control specialist. You want to check the current production of products for defects. You locate the finished products for the day and inspect the first 20 items you happen to see.

Transcript text: 4. You want to investigate the voter's opinions on an upcoming issue for your city. The city that you live in has 12 different neighborhoods. You randomly select 10 registered voters from each neighborhood and contact them to ask for their opinion. 5. You work for a company as a quality control specialist. You want to check the current production of products for defects. You locate the finished products for the day and inspect the first 20 items you happen to see.

Solution

Solution Steps

Step 1: Identify the Sampling Method for Question 4

In question 4, you are investigating voters' opinions by selecting 10 registered voters from each of the 12 neighborhoods. This method involves dividing the population into distinct subgroups (neighborhoods) and then randomly sampling from each subgroup.

Step 2: Determine the Type of Sampling

The sampling method used in question 4 is known as stratified random sampling. In stratified sampling, the population is divided into strata (in this case, neighborhoods), and random samples are taken from each stratum.