STATISTICAL TECHNIQUES AND TOOLS
SAMPLING DISTRIBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The standard error can include the variation between the calculated mean of the population and one which is considered known, or accepted as accurate. This helps compensate for any incidental inaccuracies related to the gathering of the sample.
Detailed explanation-2: -Standard error increases when standard deviation, i.e. the variance of the population, increases. Standard error decreases when sample size increases – as the sample size gets closer to the true size of the population, the sample means cluster more and more around the true population mean.
Detailed explanation-3: -The red diamonds indicate the sample means. As you can see, the means fluctuate up and down between the samples. The standard error of the mean measures the variability between sample means.
Detailed explanation-4: -Calculate the mean of the total population. Calculate each measurement’s deviation from the mean. Square each deviation from the mean. Add the squared deviations from Step 3. More items •14-Feb-2023