The largest purchaser of care of the Worldbest Healthcare System complained that the average C-section rate at Worldbest had increased from 2015 to 2016 and was now over 21 percent. The average at other area hospitals was between 17 percent and 19 percent. The purchaser told Worldbest that it expected them to lower the C-section rate to below 19 percent if they wished to remain on their provider list.Worldbest responded by making a P-chart on the combined C-section rates for all eight hospitals in the system.

Calculate the percent of deliveries that were c-sections (to one decimal place). Review the types of control charts on page 182-197 in (Lighter, 2011). Which type of control chat would you use in this situation? Why? Construct a control chart. Display your chart. The percent that you calculate should go on the y-axis, the months should go on the x-axis.

Question: Did your control chart show any special causes? Would you recommend that an intervention is needed in order to bring the average to less than 19 percent?

Month	Year	Deliveries	All C-Sections	Percent
Jan	2015	1483	286
Feb		1436	285
March		1601	316
Apr		1595	305
May		1725	336
Jun		1614	311
Jul		1715	343
Aug		1707	353
Sep		1623	298
Oct		1590	330
Nov		1409	294
Dec		1491	298
Jan	2016	1482	308
Feb		1407	303
Mar		1626	339
Apr		1569	324
May		1649	333
Jun		1552	326
July		1638	343
Aug		1487	291
Sept		1563	298
Oct		1606	349
Nov		1442	299
Dec		1479	306

Answer the question in bold and fill out the % column