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Part A: Formulating the Hypotheses Formulate the Null and Alternative Hypotheses for the following statements: 1. The state lottery office claims that the average household income of those people playing the
lottery is at least $37,000. The marketing department for a hand calculator claims the battery pack performs 20,000
calculations before it has to be recharged. A pharmaceutical manufacturer is concerned that the mean impurity concentration in pills
should not exceed 3%. A company selling new econometrics computer software advertises that firms using this
software obtain, on average during the first year, a yield of not at least 10% on their initial
investments. A professional rock climber claims that he can climb a particular mountain within half an
hour. The manufacturer of a new product claims that his product will increase output per machine
by at least 38 units per hour.

Top Answer

1. Let be the average household income of those people playing the lottery. Then H 0 : 3 7 0 0 0 H... View the full answer

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