Yes, predictions can be made from a selected sample, provided that the sample is representative of the larger population. By analyzing data from the sample, statistical methods can be employed to estimate trends, behaviors, or outcomes for the entire population. However, the accuracy of these predictions depends on the sample size and selection methods used, as biases can lead to incorrect conclusions. Proper sampling techniques and analysis are crucial for reliable predictions.
A randomly selected sample.
The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.
When the sample is drawn, it is placed back where it was taken from and if subsequent draws are made, it could be selected again.
sample
Convenience sample
A randomly selected sample.
One advantage of inferential statistics is that large predictions can be made from small data sets. However, if the sample is not representative of the population then the predictions will be incorrect.
The sample should be selected randomly.
A sample is Unbiased if everyone in the sample have an equal chance of being selected
The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.The answer depends on how the sample is selected. If it is a simple random sample, of size n, then it is distributed approximately normally with the same mean as the population mean.
sample
self selected
When the sample is drawn, it is placed back where it was taken from and if subsequent draws are made, it could be selected again.
A larger random sample will always give a better estimate of a population parameter than a smaller random sample.
Convenience sample
Random Sample
sample