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Ch 05: Assignment - Data Collection and Sampling Back to Assignment Attempts Average /.1 4. Sampling plans For each of the following examples, identify the sampling plan. Statistical Study In a study of bank loans to small businesses, a random sample of banks is selected. For the banks in the sample, data are collected on every small business loan approved during a particular month. In a study of large firms, firms with annual sales of at least $250 million are divided into three groups based on their levels of diversification. A simple random sample is taken from each group, and data are collected on each firm in the sample. To estimate the average grade point average of the students in a large statistics class, students in the course are numbered sequentially. A random-number table is used to select 40 random numbers from the numbers assigned to the students. A sample of students is obtained by using the students whose numbers correspond to the 40 randomly selected numbers. Simple Sampling Method Stratified Random Random Cluster Sampling Sampling Sampling O O O Grade It Now Save & Continue Continue without saving

          Ch 05: Assignment - Data Collection and Sampling
Back to Assignment
Attempts
Average /.1
4. Sampling plans
For each of the following examples, identify the sampling plan.
Statistical Study
In a study of bank loans to small businesses, a random sample of banks is selected. For the banks in the
sample, data are collected on every small business loan approved during a particular month.
In a study of large firms, firms with annual sales of at least $250 million are divided into three groups
based on their levels of diversification. A simple random sample is taken from each group, and data are
collected on each firm in the sample.
To estimate the average grade point average of the students in a large statistics class, students in the
course are numbered sequentially. A random-number table is used to select 40 random numbers from
the numbers assigned to the students. A sample of students is obtained by using the students whose
numbers correspond to the 40 randomly selected numbers.
Simple
Sampling Method
Stratified
Random Random Cluster
Sampling Sampling Sampling
O
O
O
Grade It Now
Save & Continue
Continue without saving

Ch 05: Assignment - Data Collection and Sampling
Back to Assignment
Attempts
Average /.1
4. Sampling plans
For each of the following examples, identify the sampling plan.
Statistical Study
In a study of bank loans to small businesses, a random sample of banks is selected. For the banks in the
sample, data are collected on every small business loan approved during a particular month.
In a study of large firms, firms with annual sales of at least 250 million are divided into three groups
based on their levels of diversification. A simple random sample is taken from each group, and data are
collected on each firm in the sample.
To estimate the average grade point average of the students in a large statistics class, students in the
course are numbered sequentially. A random-number table is used to select 40 random numbers from
the numbers assigned to the students. A sample of students is obtained by using the students whose
numbers correspond to the 40 randomly selected numbers.
Simple
Sampling Method
Stratified
Random Random Cluster
Sampling Sampling Sampling
O
O
O
Grade It Now
Save Continue
Continue without saving

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