-----> Instruction: create box plot for each question (will give helpful feedback upon completion)
Some people believe that math ability and musical ability have a relationship that is, people with musical ability also seem to do well in math. A group of researchers decides to test this theory. The researchers randomly select 100 musically gifted individuals and also 150 individuals with no musical talent. Each individual is given a test for math ability. The results are shown below: Musically Gifted Not Musically Gifted It is believed that the mean number of dog_s owned by dog-owning households is 2.1 dogs. An 5R5 of 35 dog owners has x - 2 and s - .29. Carry out an appropriate test to see If the mean number of dogs owned by dog-owning households is something other than 2.1 dogs. Use a 1% level of signicance. You want to know if there's an association between college students' spring break destinations and what year they're in. You take a random sample of 405 college students and record the following data: Amusement Parks Mexico Home Other Freshman 23 21 43 21 Sophomore 34 23 14 26 Junior 25 30 23 26 Senior 27 33 17 19A hotel wants to know if there's a relationship between gender and the way:' customers make room reservations. A manager takes a random sample of 160 reservations. She records whether they were made by a man or a woman, and also records how the reservation was made. She gets the following data: Is gender associated with a person's environmental awareness? Two hundred randomly selected individuals were surveyed about their environmental awareness. Participants were asked about recycling, use of aerosol sprays, and various other environmental concerns. A point system was developed to score the individuals' responses. Once the points were tallied, individuals were broken up into categories of environmental awareness. Those with scores of a to 10 were considered to be very environmentally aware, scores of 4 to 6 moderately aware, and 3 or less not aware. The results are shown in the following table: Very Moderately Not environmentally environmentally environmentally aware aware aware The following information was collected on 20 randomly chosen high school students, which compared their IQ score to musical aptitude. Row IQ Score Mus.Apt. 95 30 106 37 110 35 104 28 98 17 GOONOUAWN- 114 45 123 33 100 18 98 24 88 18 11 102 30 12 105 30 13 111 32 14 106 33 15 110 38 16 143 42 17 106 40 18 98 20 19 104 23 20 97 25 Descriptive Statistics Variable N Mean Median TrMean StDev SEMean IQ Score 20 105.90 104.50 104.83 11.60 2.59 Mus.Apt 20 29.90 30.00 29.78 8.27 1.85 Variable Min Max Q1 Q3 IQ Score 88.00 143.00 98.00 110.00 Mus.Apt 17.00 45.00 23.25 36.50 Regression Analysis The regression equation is Predictor Coef Stdev t-ratio P Constant -22.26 12.94 -1.72 0. 102 IQ Score 0.4925 0.1215 S = 6.143 R-sq = 47.7% R-sq(adj) = 44.8%
