Mathematics, 06.05.2020 07:22 sajawalkhan148
The American Water Works Association reports that the per capita water use in a single-family home is 67 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. Twenty-three owners responded, and the sample mean water use per day was 63 gallons with a standard deviation of 8.1 gallons per day. At the 0.025 level of significance, is that enough evidence to conclude that residents of Legacy Ranch use less water on average?a. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Reject H0: µ ≥ 67 when the test statistic is (Click to select)less thanmore than .b. The value of the test statistic is . (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)c. What is your decision regarding H0?
Answers: 2
Mathematics, 21.06.2019 15:30, shikiaanthony
What is the value of y? round to the nearest tenth
Answers: 2
Mathematics, 21.06.2019 22:20, macycj8
1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.
Answers: 2
The American Water Works Association reports that the per capita water use in a single-family home i...
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