Mathematics, 13.10.2021 01:00, j3barr01
The American Water Works Association reports that the per capita water use in a single- family home is 69 gallons per day. Legacy Ranch is a relatively new housing development. The builders installed more efficient water fixtures, such as low-flush toilets, and subsequently conducted a survey of the residences. Thirty-six owners responded, and the sample mean water use per day was 64 gallons with a standard deviation of 8.8 gallons per day.
Required:
a. At the 0.10 level of significance, is that enough evidence to conclude that residents of Legacy Ranch use less water on average?
b. What is the decision rule?
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:00, ellemarshall13
15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form
Answers: 1
Mathematics, 21.06.2019 20:40, afletcher2000
If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32
Answers: 1
Mathematics, 21.06.2019 23:30, fireemblam101ovu1gt
An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?
Answers: 3
Do you know the correct answer?
The American Water Works Association reports that the per capita water use in a single- family home...
Questions in other subjects:
Physics, 19.02.2021 21:30
Geography, 19.02.2021 21:30
Spanish, 19.02.2021 21:30
English, 19.02.2021 21:30
Mathematics, 19.02.2021 21:30
