2 Every year Cond Nast Traveler conducts an annual survey of subscribers to determine the best...

 

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2 Every year Condé Nast Traveler conducts an annual survey of subscribers to determine the best new places to stay throughout the world. Table 1.6 shows the ten hotels that were most highly ranked in their 2006 'hot list' survey. Note that (daily) rates quoted are for double rooms and are variously expressed in US dollars, British pounds or euros. a. How many elements are in this data set? b. How many variables are in this data set? c. Which variables are qualitative and which variables are quantitative? d. What type of measurement scale is used for each of the variables? 3 Refer to Table 1.6. a. What is the average number of rooms for the ten hotels? b. If €1 = US$1.26345 = £0.692067 compute the average room rate in euros. Table 1.6 The ten best new hotels to stay in, in the world Name of Hot list ranking property 1 234567 68 Amangalla, Galle Amanwella, Tangalle Bairro Alto Hotel, Lisbon Basico, Playa Del Carmen Beit Al Mamlouka Browns Hotel, London Byblos Art Hotel Villa Amista, Verona Cavas Wine Lodge, Mendoza 9 Convento Do Espinheiro Country Sri Lanka Sri Lanka Portugal Mexico Syria England Italy Argentina Portugal Canada Heritage Hotel & Spa, Evora Cosmopolitan, Toronto 10 Source: Condé Nast Traveler, May 2006 (http://www.cntraveller.co.uk/Special Room rate US$574 US$275 €180 US$166 £75 £347 €270 US$375 €213 Number of rooms 30 30 55 15 8 117 60 14 59 97 £150 Features/The_Hot_List_2006/) 4 Audio systems are typically made up of an MP3 player, a mini disk player, a cassette player, a CD player and separate speakers. The data in Table 1.7 shows the product rating and retail price range for a popular selection of systems. Note that the code Y is used to confirm when a player is included in the system, N when it is not. Output power (watts) details are also provided (Kelkoo Electronics 2006). a. How many elements does this data set contain? b. What is the population? c. Compute the average output power for the sample. 5 Consider the data set for the sample of eight audio systems in Table 1.7. a. How many variables are in the data set? b. Which of the variables are quantitative and which are qualitative? c. What percentage of the audio systems has a four star rating or higher? d. What percentage of the audio systems includes an MP3 player? Table 1.7 A sample of eight audio systems Product rating (# of stars) Brand and model Technics SCEH790 Yamaha M170 1 3 320-400 Y N 162-290 N N 188 Y N 180-230 N N 60-100 Y 143-200 Y 5 93-110 Y 5 100-130 Y Mini CD Price MP3 disc Cassette (watts) (£) player player player player Output Panasonic SCPM29 Pure Digital DMX50 Sony CMTNEZ3 Philips FWM589 PHILIPS MCM9 Samsung MM-C6 Source: Kelkoo (http://audiovisual.kelkoo.co.uk) 5 3 5 4 N N N N Y N Y N Y N Y Y 360 Y 50 Y 70 Y 80 Y 30 Y 400 Y 100 40 6 Columbia House provides CDs to its mail-order club members. A Columbia House Music Survey asked new club members to complete an 11-question survey. Some of the questions asked were: a. How many CDs have you bought in the last 12 months? b. Are you currently a member of a national mail-order book club? (Yes or No) c. What is your age? d. Including yourself, how many people (adults and children) are in your household? e. What kinds of music are you interested in buying? (15 categories were listed, including hard rock, soft rock, adult contemporary, heavy metal, rap and country.) Comment on whether each question provides qualitative or quantitative data. 8 State whether each of the following variables is qualitative or quantitative and indicate its measurement scale. a. Age b. Gender c. Class rank d. Make of car e. Number of people favouring closer European integration Figure 1.7 Volkswagen's earnings 1998-2005 Euro Earnings (m) 120 000 100 000 80 000 60 000 40 000 20 000 0 Euros (m) 1998 1999 2000 2001 2002 2003 2004 2005 Year 2 Every year Condé Nast Traveler conducts an annual survey of subscribers to determine the best new places to stay throughout the world. Table 1.6 shows the ten hotels that were most highly ranked in their 2006 'hot list' survey. Note that (daily) rates quoted are for double rooms and are variously expressed in US dollars, British pounds or euros. a. How many elements are in this data set? b. How many variables are in this data set? c. Which variables are qualitative and which variables are quantitative? d. What type of measurement scale is used for each of the variables? 3 Refer to Table 1.6. a. What is the average number of rooms for the ten hotels? b. If €1 = US$1.26345 = £0.692067 compute the average room rate in euros. Table 1.6 The ten best new hotels to stay in, in the world Name of Hot list ranking property 1 234567 68 Amangalla, Galle Amanwella, Tangalle Bairro Alto Hotel, Lisbon Basico, Playa Del Carmen Beit Al Mamlouka Browns Hotel, London Byblos Art Hotel Villa Amista, Verona Cavas Wine Lodge, Mendoza 9 Convento Do Espinheiro Country Sri Lanka Sri Lanka Portugal Mexico Syria England Italy Argentina Portugal Canada Heritage Hotel & Spa, Evora Cosmopolitan, Toronto 10 Source: Condé Nast Traveler, May 2006 (http://www.cntraveller.co.uk/Special Room rate US$574 US$275 €180 US$166 £75 £347 €270 US$375 €213 Number of rooms 30 30 55 15 8 117 60 14 59 97 £150 Features/The_Hot_List_2006/) 4 Audio systems are typically made up of an MP3 player, a mini disk player, a cassette player, a CD player and separate speakers. The data in Table 1.7 shows the product rating and retail price range for a popular selection of systems. Note that the code Y is used to confirm when a player is included in the system, N when it is not. Output power (watts) details are also provided (Kelkoo Electronics 2006). a. How many elements does this data set contain? b. What is the population? c. Compute the average output power for the sample. 5 Consider the data set for the sample of eight audio systems in Table 1.7. a. How many variables are in the data set? b. Which of the variables are quantitative and which are qualitative? c. What percentage of the audio systems has a four star rating or higher? d. What percentage of the audio systems includes an MP3 player? Table 1.7 A sample of eight audio systems Product rating (# of stars) Brand and model Technics SCEH790 Yamaha M170 1 3 320-400 Y N 162-290 N N 188 Y N 180-230 N N 60-100 Y 143-200 Y 5 93-110 Y 5 100-130 Y Mini CD Price MP3 disc Cassette (watts) (£) player player player player Output Panasonic SCPM29 Pure Digital DMX50 Sony CMTNEZ3 Philips FWM589 PHILIPS MCM9 Samsung MM-C6 Source: Kelkoo (http://audiovisual.kelkoo.co.uk) 5 3 5 4 N N N N Y N Y N Y N Y Y 360 Y 50 Y 70 Y 80 Y 30 Y 400 Y 100 40 6 Columbia House provides CDs to its mail-order club members. A Columbia House Music Survey asked new club members to complete an 11-question survey. Some of the questions asked were: a. How many CDs have you bought in the last 12 months? b. Are you currently a member of a national mail-order book club? (Yes or No) c. What is your age? d. Including yourself, how many people (adults and children) are in your household? e. What kinds of music are you interested in buying? (15 categories were listed, including hard rock, soft rock, adult contemporary, heavy metal, rap and country.) Comment on whether each question provides qualitative or quantitative data. 8 State whether each of the following variables is qualitative or quantitative and indicate its measurement scale. a. Age b. Gender c. Class rank d. Make of car e. Number of people favouring closer European integration Figure 1.7 Volkswagen's earnings 1998-2005 Euro Earnings (m) 120 000 100 000 80 000 60 000 40 000 20 000 0 Euros (m) 1998 1999 2000 2001 2002 2003 2004 2005 Year

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a Age Quantitative IntervalRatio b G Qualitative Nominal Further Explanation ... View the full answer