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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 consisting of 100 homes.
The builders installed more efficient water fixtures, such as low- flush toilets, and subsequently conducted a survey of the residences. Thirty-six homes responded, and the sample mean water use per day was 64 gallons with a standard deviation of 8.8 gallons per day.
At the .10 level of significance, is that enough evidence to conclude that residents of Legacy Ranch use less water on average?
what is the daffynition decoder for warehouse and explain?
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When the object is depressed 3 feet from its equilibrium point, it will oscillate according to the formula x =3cos(8t), where t is the number of seconds after the object is released. How many seconds are in the period of oscillation?
In an election between two candidates, 470 votes were cast. If the winner received 320 more votes than the loser, how many votes did the loser receive?
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