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Refer to the accompanying data set of mean? drive-through service times at dinner in seconds at...

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Basic Math

Refer to the accompanying data set of mean? drive-throughservice times at dinner in seconds at two fast food restaurants.Construct a 95?% confidence interval estimate of the mean?drive-through service time for Restaurant X at? dinner; then do thesame for Restaurant Y. Compare the results.

Restaurant X Restaurant Y

80                 101

119               125

118               149

151               117

268               175

182               137

120               111

153               126

164               127

213               123

329               137

312               133

182               226

117               209

154               288

143               128

101               98

232               136

240               247

181               140

149               146

195               202

168               146

124               139

69                 136

206               143

177               154

114               138

139               165

169               134

193               240

197               235

235               251

190               237

354               234

305               172

206               86

194               104

184               53

192               172

102               82

150               140

174               145

153               98

173               125

159               146

170               133

120               184

135               152

313               132

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