Basic Statistics for Business and Economics ch 8
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the reasons for sampling? | show 🗑
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| What are the sampling methods? | show 🗑
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| show | A sample selected sot that each item or person in the population has the same chance of being included.
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| Table of Random Numbers | show 🗑
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| Systematic Random Sample | show 🗑
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| Stratified Random Sample | show 🗑
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| show | A population is divided into clusters using naturally occurring geographic of other boundaries. Then, clusters are randomly selected and a sample is collected by randomly selecting from each cluster.
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| Sampling Error | show 🗑
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| Sampling Distribution of the Sample Mean | show 🗑
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| show | If all samples of a particular size are selected from any population, the sampling distribution of the sample mean is approximately a normal distribution. This approximation improves with larger samples.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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