DHCCDOM 13714 MAT 181-09 Test: Statistics Final Examination This Question: 1 pt

Question

DHCCDOM 13714 MAT 181-09 Test: Statistics Final Examination This Question: 1 pt 1 of 20 (0 complete This Test: 20 pts possible A TV show Lindsay and Tobias, recently had a share of 30, meaningthat among the TV sets in use, 30% were tnedto that show Assume that an advertiser wants to verify that 30% share value by conducting its own survey, and a pilot survey begins with 12 households having TV sets in use at the time of Lindsay and Tobas a. Find the probabaity that none of the households are tuned to Lindsay and Toolas (Round to three decimal places as needed b Find the probability that at least one household is tuned to Lindsay and Tobias (Round to three decimal places as needed) c. Find probability that at most one household is tuned to Undsay and Tobias Round to three decimal places as needed d. If at most one household is tuned to Lindsay and Tobias, does it appearthatthe 30% share value is wrong? Why ar why nor? of most one household is less than 005 O A. Yes, because with a 30% rate, the probabilty of at mast one household is less than 005 O B. No, because with a 30% rate the probabity C. Yes, because with a 30 rate the probability of at most one household is greater than 005 O D. No, because wrh a 30% rate the probabilit of at most one household is geaterthan 005 DOLL

Explanation / Answer

n = 12

p = 03

q = 0.7

a) P(no household tuned to Lindsay and Tobias) = 0.712 = 0.0138

b) P(at least 1 house tuned to Lindsay and Tobias) = 1 - 0.0138 = 0.9862

c) P(at most one household tuned to Lindsay and Tobias) = 0.712 + 12x0.3x0.711 = 0.085

d) D. No, because with a 30% rate, the probability of at most one household is greater than 0.05

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