Water usage is closely watched in many parts of Australia, Suppose that in a summer the...
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Water usage is closely watched in many parts of Australia, Suppose that in a summer the average household usage in Hobart is 408 litres per day. A year later it examines records of a sample of 50 households and finds that there is a daily mean usage of 380 litres with a standard deviation of 25 litres. Water usage is closely watched in many parts of Australia, Suppose that in a summer the average household usage in Hobart is 408 litres per day. A year later it examines records of a sample of 50 households and finds that there is a daily mean usage of 380 litres with a standard deviation of 25 litres.
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Answer a From the information given The null hypothesis H 0 408 litres per day The alternate hypothesis H 1 408 litres per day where represents the po... View the full answer
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