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A CEO meets with an average of 1.9 people per hour, with a standard deviation of 0.4. Her administrative assistant installed new scheduling software. He
A CEO meets with an average of 1.9 people per hour, with a standard deviation of 0.4. Her administrative assistant installed new scheduling software. He kept track of how many people the CEO met with for the next 15 hours, and it averaged 2.3 people. The assistant wants to know if the new scheduling software made a positive difference. H0:=1.9;Ha:>1.9 =0.05 test statistic =3.87 z0.05=1.645. Which is the correct conclusion of the admin's one-mean hypothesis test at the 5% significance level
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