Mathematics, 19.07.2019 22:30 priscillavaladez1112
The hawk-eye electronic system is used in tennis for displaying an instant replay that shows whether a ball is in bounds or out of bounds, so players can challenge calls made by referees. in a recent us open, singles players made 611 challenges and 172 of them were successful with the call overturned. use a 0.01 significance level to test the claim that fewer than 1/3 of the challenges are successful.
Answers: 3
Mathematics, 21.06.2019 18:30
Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3
Answers: 3
Mathematics, 21.06.2019 19:30
The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?
Answers: 3
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