## 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 …

Read moreSample size calculator to test hypothesis about mean

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 $\overline{x}$ …

Read moreMoment coefficient of kurtosis calculator for grouped data

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 …

Read moreMoment coefficient of kurtosis calculator for ungrouped data

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 …

Read moreMoment coefficient of skewness Calculator for grouped data

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 …

Read moreMoment coefficient of skewness Calculator for ungrouped data

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 …

Read moreBowley’s Coefficient of Skewness Calculator for grouped data

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 …

Read moreBowley’s Coefficient of Skewness Calculator for Ungrouped data

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 …