A sprinkler system is designed so that the average time for the sprinklers to activate after being turned on is no more than (15) seconds. A test of (6) systems gave the following times: (17, 31, 12,...

A sprinkler system is designed so that the average time for the sprinklers to activate

after being turned on is no more than (15) seconds. A test of (6) systems gave the

following times:
(17, 31, 12, 17, 13, 25)
Is the system working as specified? Test using, α =0.1.

Extracted text: A sprinkler system is designed so that the average time for the sprinklers to activate after being turned on is no more than (15) seconds. A test of (6) systems gave the following times: (17, 31, 12, 17, 13, 25) Is the system working as specified? Test using, a =0.1.