location on the two different dates is in the table. Estimate the mean difference in traf een the 6th and the 13th using a 95% level. Round to the nearest whole number. c Count Dates 6th 13th 990, July 124843 122766 990, July 122384 122909 991, September 124255 122340 991, September 123125 120366 991, December 127873 128871 991, December 118840 115788 992, March 135754 133695 992, March 131116 128582 992, November 130642 992, November 127110 133042 126159

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The British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did
a traffic count on a Friday and then again on a Friday the 13th at the same two locations. The data for
each location on the two different dates is in the table. Estimate the mean difference in traffic count
between the 6th and the 13th using a 95% level. Round to the nearest whole number.
Traffic Count
Dates
1990, July
1990, July
6th
13th
124843
122766
122384
122909
1991, September 124255 122340
1991, September 123125 120366
1991, December
1991, December
127873 128871
118840 115788
135754 133695
1992, March
1992, March
131116 128582
1992, November
133042 130642
1992, November 126159 127110
With 95
count between the 6th and the 13th is between
O % confidence, it can be said that the true mean difference in traffic
and
Transcribed Image Text:The British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did a traffic count on a Friday and then again on a Friday the 13th at the same two locations. The data for each location on the two different dates is in the table. Estimate the mean difference in traffic count between the 6th and the 13th using a 95% level. Round to the nearest whole number. Traffic Count Dates 1990, July 1990, July 6th 13th 124843 122766 122384 122909 1991, September 124255 122340 1991, September 123125 120366 1991, December 1991, December 127873 128871 118840 115788 135754 133695 1992, March 1992, March 131116 128582 1992, November 133042 130642 1992, November 126159 127110 With 95 count between the 6th and the 13th is between O % confidence, it can be said that the true mean difference in traffic and
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