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A sample of 16 people reveals the mean yealy to be 60 pound and stand deviation of 20 pound What is the value of the population mean?
Wiki User
∙ 14y ago
You use the sample mean as the estimate of the population mean; then as standard practice place confidence limits on the mean; most use 95%.
Wiki User
∙ 14y ago
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What does the sample standard deviation best estimate?
The standard deviation of the population. the standard deviation of the population.
What happens if you estimate population standard deviation with the sample standard deviation?
Not a lot. After all, the sample sd is an estimate for the population sd.
Can a standard deviation of a sample be equal to a standard deviation of a population?
Yes
How do i find sample standard deviation from population standard deviation?
If the population standard deviation is sigma, then the estimate for the sample standard error for a sample of size n, is s = sigma*sqrt[n/(n-1)]
What is the statistic that is used to estimate a population standard deviation?
the sample standard deviation
When the population standard deviation is not known the sampling distribution is a?
If the samples are drawn frm a normal population, when the population standard deviation is unknown and estimated by the sample standard deviation, the sampling distribution of the sample means follow a t-distribution.
Sample standard deviation?
Standard deviation in statistics refers to how much deviation there is from the average or mean value. Sample deviation refers to the data that was collected from a smaller pool than the population.
When we know the population mean but not the population standard deviation which statistic do we use to compare a sample to the population?
The sample standard error.
Can a standard deviation of a sample be less than a standard deviation of a population?
Sure it can. But in the survey business, the trick is to select your sample carefully so that they'll be equal, i.e. a sample that is accurately representative of the population.
What is the standard deviation of 157 160 161 172 165 149?
The standard deviation if the data is a sample from a population is 7.7115; if it is the population the standard deviation is 7.0396.
What is the estimated population mean with a sample of 36 and a standard deviation of 0.03?
What is the sample mean?
How does one calculate the standard error of the sample mean?
Standard error of the sample mean is calculated dividing the the sample estimate of population standard deviation ("sample standard deviation") by the square root of sample size.
