The New York City Data Initiative reports on annual water consumption. The accompanying table shows daily water
Question:
The New York City Data Initiative reports on annual water consumption. The accompanying table shows daily water consumption per capita? (in gallons) from 1986 to? 2019, along with a scatterplot. A regression to predict Daily water consumption per capita from Year has an
R2
of
92.8%.
Complete parts a through c.
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Click the icon to view the water consumption data and scatterplot.
Year Daily Water Consumption (million gallons per capita)
1986 185
1987 197
1988 202
1989 191
1990 194
1991 199
1992 184
1993 182
1994 179
1995 174
1996 169
1997 155
1998 155
1999 156
2000 155
2001 148
2002 141
2003 136
2004 136
2005 141
2006 132
2007 137
2008 135
2009 123
2010 127
2011 123
2012 121
2013 120
2014 118
2015 119
2016 118
2017 117
2018 120
2019 118
Question content area bottom
Part 1
?a) What are the variables and units in this? regression?
Water consumption in millions of gallons per person
Population in capita
Water consumption in gallons
R2
in percentage
Part 2
?b) What are the units of the? slope?
Million gallons? (per person)
Years per million gallons? (per person)
Million gallons? (per person) per year
Years
Part 3
?c) What is the correlation between water consumption and? year?
The correlation is
enter your response here.
?(Round to three decimal places as? needed.)
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock