Question

webassign.net web/Student/Assignment Responses/submit/dep=24152373&tagsauto save question374945,11 In a sales effectiveness seminar, a group of sales representatives tried two approaches to selling a customer a new automobile: the aggressive approach and the passive approach. For 1160 customers, the following record was kept: Sale No Sale Row Total Aggressive 270 301 580 Passive 480 94 580 Column Total 765 1160 Suppose a customer is selected at random from the 1160 participating customers. Let us use the following notation for events: A - aggressive approach, Ps - passive approach, S - sale, N - no sale. So, PCA) is the probability that an aggressive approach was used, and so on. (a) Compute P(S), PSIA), and PCS I Pa). (Enter your answers as fractions.) P(S) - 749/1100 PES I A) - 270/1100 PES I Pa) - 580/1100 Enter a fraction, Integet, or bad decimal. Do not approximate (b) Are the events sale and Po - passive approach independent? Explain Yes. The two events can occur together Yes. P(S) - PES Pa). No. P(S) PES Pa). No. The two events cannot occur together (c) Compute PCA and S) and P Pa and S) (Enter your answers as fractions PA and S) - PUPa and S) - (d) Compute PLN) and PIN LA). (Enter your answers as fractions) PN) = PINIA) - e) Are the events Nosale and Aaggressive approach independent? Explain No. NP( NA). Yes. The two events can occur together. Yes PN - PNIA) No. The two events cannot occur together

Answer 1

	S	N	Total
A	279	301	580
Pa	486	94	580
Total	765	395	1160
a.	765/1160
	279/580
	486/580
b.	No. P(S) ≠ P(S | Pa)
c.	279/1160
	486/1160
d.	395/1160
	301/580
e.	No. P(N) ≠ P(N | A)
f.	(580 + 765 - 279)/1160 = 1066/1160

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