32 A published this survey result 74% of people would be willing to spend 10pere
ID: 3202968 • Letter: 3
Question
32 A published this survey result 74% of people would be willing to spend 10pereent more for energy from a non-polluting source. The survey question was announced on a national radio show and 1.200 listeners responded by calling in. What is wrong with this survey? 3) 38% of adults in the United States regularly visit a doctor This conclusion was reached by a college student after she had questioned 520 randomly selected members of her college. What is with her survey? wrong CHAPTER 2: USE MAY USE THE CALCULATOR TO DETERMINE THE ANSWER HERE: 30 Six college buddies bought each other Christmas gifts. They spent $261.12 $12052 $186.23 What was the mean amount spent? Round your answer to the nearest cent. D)$325.59 C S21706 A)$24847 350 The distances traveled (in miles) to 7 different swim meets are given below: Find the median distance traveled B)39 miles 67 miles A) 51 miles Find the midrange for the given sample data. 36) Bill kept track of the number of hours he spent exercising each week. The resultsfor 15 weeks areshown below. Find the midrange. 7.1 70 71 75 76 77 69 80 &M; 75 85 70 77 88 75 B) 75 D) 19 37) Jeanne is currently taking college economics The instructor often gives quizzes. On the past five quizzes, Jeanne got the following scores 8 16 215 9 Compute the B)16Explanation / Answer
32) In this case, the only respondents will be the people who listen to the national radio show. This may introduce as bias in the survey sample as the people of the general population may not be as likely as the listners of the show in spending extra on non polluting energy.
33) Only respondents in the sample were from the girl's college. Similar to the above question the students in her college may be visiting a doctor more or less often than the general population, and the sample is not representative.
34) This is the simple arithmetic average that is the sum of all the numbers divided by the number of entries(6).
Answer is therefore $217.06, that is (c)
35) The data is arranged in ascending order. There are 7 data points. As there are odd number of data points we choose the middle point, thatis the (7+1)/2=4th point. So median distance is: 54 miles.So answer is D
36) Midrange is the arithmetic average of the largest and smallest values: So it is (6.9+8.8)/2 =7.85 So A.
37)Range is the difference between the largest and smallest values. So in this case it is 16-2=14.So answer is D.
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