Podcast
Questions and Answers
Selecting a sample is less time-consuming than selecting every item in the population (census). Selecting a sample is less costly than selecting every item in the population. An analysis of a sample is less cumbersome and more practical than an analysis of the entire population. A Sampling Process Begins with a Sampling Frame. The sampling frame is a listing of items that make up the ______.
Selecting a sample is less time-consuming than selecting every item in the population (census). Selecting a sample is less costly than selecting every item in the population. An analysis of a sample is less cumbersome and more practical than an analysis of the entire population. A Sampling Process Begins with a Sampling Frame. The sampling frame is a listing of items that make up the ______.
population
Inaccurate or biased results can result if a frame excludes certain portions of the ______.
Inaccurate or biased results can result if a frame excludes certain portions of the ______.
population
Using different frames to generate data can lead to ______ conclusions.
Using different frames to generate data can lead to ______ conclusions.
dissimilar
Randomly select one individual from the 1st group. Select every ______ individual thereafter.
Randomly select one individual from the 1st group. Select every ______ individual thereafter.
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Divide population into two or more subgroups (called strata) according to some common ______.
Divide population into two or more subgroups (called strata) according to some common ______.
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A simple random sample is selected from each subgroup, with sample sizes proportional to strata ______.
A simple random sample is selected from each subgroup, with sample sizes proportional to strata ______.
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In a nonprobability ______, items included are chosen without regard to their probability of occurrence. Convenience sampling is based only on the fact that they are easy, inexpensive, or convenient to ______.
In a nonprobability ______, items included are chosen without regard to their probability of occurrence. Convenience sampling is based only on the fact that they are easy, inexpensive, or convenient to ______.
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In a judgement ______, you get the opinions of the pre-selected experts in the subject matter. Probability ______ involves items in the ______ chosen on the basis of known probabilities.
In a judgement ______, you get the opinions of the pre-selected experts in the subject matter. Probability ______ involves items in the ______ chosen on the basis of known probabilities.
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Every individual or item from the frame has an equal chance of being selected. Selection may be with replacement. This is known as ________ sample.
Every individual or item from the frame has an equal chance of being selected. Selection may be with replacement. This is known as ________ sample.
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Population is divided into several “clusters”, each representative of the population. A simple random sample of clusters is selected. This is known as ________ sample.
Population is divided into several “clusters”, each representative of the population. A simple random sample of clusters is selected. This is known as ________ sample.
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Simple random sample and systematic sample are ________ to use, but may not be a good representation of the population’s underlying characteristics.
Simple random sample and systematic sample are ________ to use, but may not be a good representation of the population’s underlying characteristics.
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Sample size for estimati______g populatio______ mea______ – the formula for determi______i______g sample size is give______ as: Where; ______ = sample size, $\sigma$ = populatio______ std. deviatio______, e = margi______ of error, Z = the value for the give______ co______fide______ce i______terval.
Sample size for estimati______g populatio______ mea______ – the formula for determi______i______g sample size is give______ as: Where; ______ = sample size, $\sigma$ = populatio______ std. deviatio______, e = margi______ of error, Z = the value for the give______ co______fide______ce i______terval.
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Statistical Thinking is a philosophy of understanding and action based on 3 principles: 1. All work occurs in a system of interconnected processes. 2. Variation exists in all processes. 3. Understanding and reducing variation are keys to ________.
Statistical Thinking is a philosophy of understanding and action based on 3 principles: 1. All work occurs in a system of interconnected processes. 2. Variation exists in all processes. 3. Understanding and reducing variation are keys to ________.
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Variables can be categorized in different scales of measurement. Nominal scale involves categories, labels, data carry no numerical value. Ordinal scale involves ________ ordered data, but no information about distance between ranks.
Variables can be categorized in different scales of measurement. Nominal scale involves categories, labels, data carry no numerical value. Ordinal scale involves ________ ordered data, but no information about distance between ranks.
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Degree. This is associated with ________ scale, which lacks a true zero point.
Degree. This is associated with ________ scale, which lacks a true zero point.
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Integration of statistical thinking and statistical methods into a philosophy of learning and action resulting in improvement. Basics of Statistical Process Control. Determining Sample Size It’s all about the level of ________.
Integration of statistical thinking and statistical methods into a philosophy of learning and action resulting in improvement. Basics of Statistical Process Control. Determining Sample Size It’s all about the level of ________.
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