Stefan H. Steiner, Grouped Data Exponentially Weighted Moving Average Control Charts, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 47, No. 2 (1998), pp. 203-216 ...

Methodology is proposed for the design of sequential methods when data are obtained by gauging articles into groups. Exact expressions are obtained for the operating characteristics and average ...

You can make a bar graph in Excel by first selecting the range you want to depict, and then using the dropdown menu to select the desired chart.