Medical Mutual Insurance investigates the cost of a routinevisit to family physicians' offices in the Rochester, New Yorkarea. The following is a list of family doctors in the region.Physicians should be selected at random and establish communicationwith them to know the amount of their fees. The 39 doctors werecoded from 00 to 38. It is also indicated if they have their ownoffice (P), if they have a partner (S) or if they have a grouppractice (G).

Número	Médico	Tipo de consultorio	Número	Médico	Tipo de consultorio
00	R.E.Scherbarth,M.D.	P	20	Gregory Yost,M.D.	S
01	Crystal R.Goveia,M.D.	S	21	J.Christian Zona,M.D.	S
02	Mark D.Hillard,M.D.	S	22	Larry Johnson,M.D.	S
03	Jeanine S.Huttner,M.D.	S	23	Sanford Kimmel,M.D.	S
04	Francis Aona,M.D.	S	24	Harry Mayhew,M.D.	P
05	Janet Arrowsmith,M.D.	S	25	Leroy Rodgers,M.D.	P
06	David DeFrance,M.D.	P	26	Thomas Tafelski,M.D.	P
07	Judith Furlong,M.D.	P	27	Mark Zilkoski,M.D.	G
08	Leslie Jackson,M.D.	G	28	Ken Bertka,M.D.	G
09	Paul Langenkamp,M.D.	P	29	Mark DeMichiei,M.D.	G
10	Philip Lepkowski,M.D.	P	30	John Eggert,M.D.	S
11	Wendy Martin,M.D.	P	31	Jeanne Fiorito,M.D.	S
12	Denny Mauricio,M.D.	S	32	Michael Fitzpatrick,M.D	S
13	Hasmukh Parmar,M.D.	S	33	Charles Holt,D.O.	S
14	Ricardo Pena,M.D.	S	34	Richard Koby,M.D.	S
15	David Reames,M.D.	S	35	John Meier,M.D.	S
16	Ronald Reynolds,M.D.	G	36	Douglas Smucker,M.D.	P
17	Mark Steinmetz,M.D.	G	37	David Weldy,M.D.	S
18	Geza Torok,M.D.	P	38	Cheryl Zaborowski,M.D.	S
19	Mark Young,M.D.	S

The random numbers that were obtained are 31, 94, 43, 36, 03,24, 17 and 09. With which doctors should communication beestablished? b. The sample must include every fifth doctor. Thenumber 04 is selected as the starting point. With which doctorsshould contact be established? c. A sample should consist of twodoctors with their own practice (P), two who have partners (S) andone with a group practice (G). What kind of sampling would you usehere? Explain your procedure.