his Question: 1 pt 58 of 65 (37 complete) ATV show, Lindsay and Tobias, recently
ID: 3055200 • Letter: H
Question
his Question: 1 pt 58 of 65 (37 complete) ATV show, Lindsay and Tobias, recently had a share of 10, meaning that among the TV sets in use, 10% were tuned to that show. Assume that an advertiser wants to verify that 10% share value by conducting its own survey, and a plot survey begins with 17households having TV sets in use at the time ofaLindsay and Tobias broadcast a. Find the probability that none of the households are tuned to Lindsay and Tobias (Round tothree 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 the probability that at most one household is tuned to Lindsay and Tobias. (Round to three decimal places as needed.) dif at most one household is tuned to Lindsay and Tobias, does it appear that the 10% share value is wrong? Why or why not? A. Yes, because with a 10% rate, the probablity of at most one household is less than 005. B. No, because with a 10% rate, the probability of at most one household is less than OOS. O c. Yes, because with a 10% rate, the probability of at most one household is greater than 0.05. 0 D. No, because with a 10% rate, the probability of at most one household is greater than 0.05.Explanation / Answer
Ans:
1)Given that
p=0.1,n=17
a)P(none)=P(x=0)=(1-0.1)17=0.167
b)P(atleast one)=1-P(none)=1-0.167=0.833
c)P(atmost 1)=P(x=0)+P(x=1)=0.167+17C1*0.11*0.916=0.167+0.315=0.482
Option D is correct(as this is not an unusual event as probbaility >0.05)
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