Please assist in solving the question below:

3. For the data shown in the table below, construct a p-chart to evaluate the proportion of delayed flights, a c-chart to assess the number of delayed flights, and x-bar and R-charts to analyze the delay duration (in minutes). After creating these charts, discuss which of them you find useful or not useful, and provide your reasoning.

			Among Samples of 5 Delayed Flights
Date	#Flights	#Delayed Flights	Avg Delay Length	Range of Delay Length
08-Apr	91	10	11.67	29.38
09-Apr	94	15	21.33	31.56
10-Apr	92	8	19.12	52.91
11-Apr	88	8	7.21	81.45
12-Apr	109	7	17.13	27.17
13-Apr	108	11	13.83	43.28
14-Apr	112	16	22.9	33.15
15-Apr	89	7	13.3	28.15
16-Apr	94	13	15.64	46.11
17-Apr	88	12	17.78	68.31
18-Apr	90	8	23.89	45.12
19-Apr	112	16	21.42	37.43
20-Apr	110	17	21.64	37.56
21-Apr	111	7	16.34	70.16
22-Apr	93	10	20.25	49.03
23-Apr	88	5	20.77	58.82
24-Apr	93	12	11.39	48.5
25-Apr	93	14	23.17	54.16
26-Apr	109	14	8.36	55.86
27-Apr	115	17	16.83	28.87
28-Apr	112	7	19.9	67.78
29-Apr	88	12	14.26	52.78
30-Apr	92	12	20.68	67.07
01-May	92	5	13.69	55.33

4. Using the control limits determined above, evaluate whether the new data shown in the table below (on the right) suggests that network performance is within control or out of control.

			Among Samples of 5 Delayed Flights
Date	#Flights	#Delayed Flights	Avg Delay Length	Range of Delay Length
10-May	91	21	32.43	118.59
11-May	94	15	31.85	74.79
12-May	92	16	27.08	78.79