Businesses know that customers often respond to background music. Do they also respond to odors? One study of this question took place in a small pizza restaurant in France on two Saturday evenings in May. On one of these evenings, a relaxing lavender odor was spread through the restaurant. On the other evening, no scent was used. The table gives the time (in minutes) that two samples of 30 customers spent in the restaurant and the amount they spent (in euros). Time (minutes) and spending (euros) by restaurant customers Minutes 103 No Odor Euros Spent Minutes 15.9 92 Lavender Euros Spent 21.9 68 18.5 126 18:5 79 15.9 114 22.3 106 18.5 106 21.9 72 72 18.5 89 18.5 121 21 21.9 137 24.9 92 15.9 93 18.5 84 15.9 76 225 72 15.9 98 98 21.5 92 15.9 108 219 < Question 5 of 43 Stacked 85 15.9 124 21.5 69 18.5. 105 18.5. 73 18.5 129 25.5 87 18.5 103 18.5 109 20.5 107 18.5 115 15 18.5 109 21.9 91 16 18.5 94 18.5 84 15.9 105 18.5 76 76 15.9 102 24.9 96 96 15.9 108 21.9 07: 18.5 95 25.9 98 18.5 121 221 21.9 92 107 26 15.9 109 18.5 18.5 104 18.5 93 93 15.9 116 22.8 118 18.5 18.5 Question 5 of 43 87 15.9 Stacked Attempt 3 109 21.9 101 25.5 97 20.7 75 12.9 1011 21.9 86 15.9 106 22.5 To access the complete data set, click to download the data in your preferred format. CSV Excel JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI Crunchlt! The two evenings were comparable in many ways (weather, customer count, and so on), so we are willing to regard the data as independent SRSs from spring Saturday evenings at this restaurant. Nicolas Gueguen and Christine Petr, Odors and consumer behavior in a restaurant. Journal of Hospitality Management, 25 (2006), pp. 335-339. Although the spending data are quite discrete, a bootstrap BCa 95% confidence interval for the difference in means based on 1000 resamples is 2.394 to 4.826, close to the Option 1 95% interval 2.209 to 3.736. So the sample means are sufficiently Normal to allow use of t procedures. Find the test statistic r. Give your answer to two decimal places