Question
A sample of ten is taken at random from a large batch of (nominally 12 volt) batteries. These are tested and their true voltages are
A sample of ten is taken at random from a large batch of (nominally 12 volt) batteries. These are tested and their true voltages are shown below:12.9 11.6 13.5 13.9 12.1 11.9 13.0 12.6 13.2 12.8
Testifthemeanvoltageofthewholebatchis12volts.
Testifthemeanbatchvoltageisgreaterthan12volts.
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Elementary Statisitcs
Authors: Barry Monk
2nd edition
1259345297, 978-0077836351, 77836359, 978-1259295911, 1259295915, 978-1259292484, 1259292487, 978-1259345296
