# (Answered) MATH399N Week 1 Assignment: Sampling and Parameters

Question: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly selected group of 200parents whether or not they use cloth diapers. What is the parameter?

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Is the statement below true or false? Data is a subset of the population studied.

When considering different sampling methods, cluster sampling includes the steps:

Question: In reference to different sampling methods, is the following statement true or false?

Question Cluster sampling includes the steps: divide the population into groups; use simple random sampling to identify a proportionate number of individuals from each group.

Question: Joseph wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 200 randomly selected students in the school. What is the sample?

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Douglas wants to estimate the percentage of homeowners that own at least one dog. He surveys 125 randomly selected homeowners to determine whether or not they own dogs. What is the statistic?

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Sneha wants to inspect the cleanliness of the rooms in a hotel. There are 10 floors in the hotel and each floor has 20 rooms. From each floor, she randomly selects 2 rooms and inspects them.

What type of sampling did Sneha use?

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Annie wants to estimate the average number of AP classes a student at her high school takes. She decides to randomly select 6 classes and use all the students in those 6 classes to estimate the average. What type of sampling did Annie use?

# solution:

Question: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly selected group of 200parents whether or not they use cloth diapers. What is the parameter?