How much time do commuters living in or near cities spend commuting to work each week? the accompanying commuting time data contains the average weekly commuting time in 28 US cities. Use excel to compute the sample statistics and the critical value needed in the problem. make sure you can compute the sample mean and the sample standard deviation manually as well

 

City Baltimore Boston Charlotte Chicago Columbus OH Dallas Weekly Commuting Time 153 160 132 161 118 140 Denver 137 Detroit El Paso Miami Houston 126 117 153 148 Indianapolis Jacksonville Las Vegas Los Angeles Louisville Memphis Milwaukee Nashville New York Philadelphia Phoenix San Antonio San Diego San Francisco San Jose Seattle Washington DC 124 132 122 152 119 120 116 135 186 158 130 129 127 151 137 147 172