Sample size calculator to estimate proportion
Sample size required to estimate proportion The formula to estimate the sample size required to estimate the proportion is $$ n =p*(1-p)\bigg(\frac{z}{E}\bigg)^2 $$ where, $p$ …
Various statistical calculators with solved numerical examples
Sample size required to estimate proportion The formula to estimate the sample size required to estimate the proportion is $$ n =p*(1-p)\bigg(\frac{z}{E}\bigg)^2 $$ where, $p$ …
Sample size to test hypothesis about mean In inferential statistics, knowing how many samples to take from the population is extremely important. In this tutorial …
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Sample size to estimate mean In inferential statistics, knowing how many samples to take from the population is extremely important. In this tutorial we will …
Moment coefficient of kurtosis for grouped data Let $(x_i,f_i), i=1,2, \cdots , n$ be given frequency distribution. The mean of $X$ is denoted by $\overline{x}$ …
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Kurtosis Kurtosis is the peakedness of a frequency curve. Even if two curves have the same average, dispersion and skewness, one may have higher (or …
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Moment coefficient of skewness for grouped data Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A data set is symmetric …
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Skewness Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A data set is symmetric if it looks the same to …
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Bowley’s Coefficient of Skewness for grouped data Bowley’s coefficient of skewness is based on quartiles of the data. It is based on the middle 50 …
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Bowley’s Coefficient of Skewness for Ungrouped data Skewness is a measure of symmetry. The meaning of skewness is "lack of symmetry". Skewness gives us an …
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Mean, median and mode Mean, median, mode are the measures of central tendency. They are also known as averages. Averages are the measures which condense …