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What is dependent sample?
Data gathering in two different samples such that there is matching of the first sample data drawn and a corresponding data value in the second sample.
What is the difference between an event sample and a time sample?
An event sample is data points captured for a single event. A time sample are data points capture over a specific period of time.
What is independent values?
sample data drawn from one population is completely unrelated to the selection of sample data from the other population.
What is the size of a sample for a survey?
The population is every data point you intend to generalise the survey results to. The sample frame is those data points that you can pick from for the survey. The sample is which of these data points you actually survey, and the sample size is how many of those data points there are. For instance, if you have 700 students in a school, and you have access to 300 of them, and decide to give 30 of them a survey, the sample size is 30.
In basic statistics what is sample size and effective sample size?
sample size refers to the collection of data by only a selected size of te population through the process of sample surveys and sampling methods used in collecting data.
How will you ensure validity and reliability of data?
To ensure validity and reliability of data, market researchers can present the same surveys to different respondents within the same sample area. Using a wider sample area will also give a true picture of the results.
Why would someone want to assume that your sample data represents a population distrubution?
Most people take samples so that they may make estimates of parameters of interest: mean, variance, etc for the whole population. For such an estimate to have any validity the sample data must be assumed to represent a population distribution. Otherwise any conclusions based on the sample are valid only for the sample: hardly worth the effort!
Is the data is sample or population?
Data is neither sample nor population. Data are collected for attributes. These can be for a sample or a population.
What is dependent sample?
Data gathering in two different samples such that there is matching of the first sample data drawn and a corresponding data value in the second sample.
What is an dependent value?
there is a matching of the first sample data drawn and a corresponding data value in the second sample data.
Provide details on surveying equipment.?
You will need to make sure the equipment can reach the group you are targeting. It must be multi-faceted and measurable, it must allow for pre-testing and use of pilot data. The Validity must not be questionable, you are looking for reliability. You also need to determine that the sample is random and unbiased. Because this is a large sample size, automated services could also be employed.
How do you ensure the validity of test?
To ensure that a periodic test is valid you must observe and analyze the test data. This method of test validity is called content validity.
How do you ensure validity of test?
To ensure that a periodic test is valid you must observe and analyze the test data. This method of test validity is called content validity.
What are the necessities to have a good poll?
To have a good poll, it is necessary to have clear and unbiased questions, a representative sample of the target population, and a sufficient number of participants to ensure statistical validity. Additionally, it is important to ensure that the poll is conducted in an ethical manner and that the data is analyzed and interpreted accurately.
How do you ensure the validity of periodic test?
To ensure that a periodic test is valid you must observe and analyze the test data. This method of test validity is called content validity.
Is median always sometimes or never in a data set?
If the sample has an odd number of items in it then the median will definitely be in the sample at least once because the median is value of the set of data items whose value(s) are in the middle of the sample when the sample is sorted from smallest to largest. If the sample has an even number of items in it then if the middle items are different the median will be their average, and it will differ from all of the items in the data set. I could continue in this vein but already you can see that the median sometimes occurs in a data set but not always.
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