to be held on Brown\'s Island on Saturday, May 4. They anticipate that a 197,790
ID: 3319133 • Letter: T
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to be held on Brown's Island on Saturday, May 4. They anticipate that a 197,790 citizens, or 2.02% of the citizens, will spend part of the day at the festival that be Abuse Now (SCAN). d officials are interested in the opinions of citizens regarding the Cinco De Mayo festival ximately 4000 of the city's nefits Stop Child To gather information, the city randomly selected 10 of the city's 61 telephone calling exchanges, and for each of those 10 telephone calling exchanges, randomly selected 12 citizens. These 120 citizens were contacted, and the following information obtained. 96 felt that using the proceeds to benefit SCAN was a good idea; 112 felt moving the festival back to Brown's Island was a good idea; 7 indicated that they would attend the Cinco De Mayo festival and then the NASCAR race later that night, and 102, or 85%, felt that the musical groups performing (Fishbone, Fighting Gravity, Carbon Leaf, and Bio Ritmo) would attract many fans to the festival. The mean age of the 120 citizens contacted was 43.2 years Use the information in the above two paragraphs to answer questions 1 through 5 1. The sampling procedure described in the first sentence of the second paragraph is which of the following? (A) Haphazard sampling (D) Stratified random sampling (C) Simple random sampling (B) Multistage random sampling (E) Volunteer response sampling The 2.02% described above is which of the following? (A) Population (B) Sample (C) Parameter 2. (D) Statistic (E) Critical value 3. The 43.2 years described above is which of the following? (C) X (A) M (B) (D) s (E) The proportion of the sample of 120 citizens who felt that using the proceeds to benefit SCAN was a good idea is which of the following? 4. 120 120 (D) P 120 96 120 96 96 120 96+120 (B) (C) p=120 (A) (E) = 5. City of Richmond officials want to use the sample data to test whether the mean income of all 197,790 citizens of Richmond is less than $40,235 (which is the state-wide mean). Which of the reflects the hypotheses that the city officials want to test? (A) Ho-X-40235 (B) Ho:Xc40235 (C) Ho:-40235 (D) Ho:12 (E) Ho: -40235 following HA: X 40235 Ha:Explanation / Answer
Solution1:
From the words randomly selected
it is simple random sampling
OPTIONC
Solution2:
it is population proportion
p.
it is parameer decribing population
OPTION A POPULATION
Solution3:
it is smaple mean
smaple mean represented by X bar
OPTIONC X BAR
Solution4:
Sample proportion=p^=x/n=successes/total
96 felt good out of 120 sampled
=96/120
OPTION B:PI=96/120
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