Slab avalanches studied in Canada have an average thickness of $mu$ = 67 cm. The ski patrol at Vail Colorado, is studying slab avalanches in their region. A random sample of 16 avalanches showed that x-bar = 61.8cm and s = 10.6 cm. Assuming the slab thickness is normally distributed, test the claim that the mean slab thickness is the Vail region is different from that in Canada with a level of significance of 1%.

TESTS OF SIGNIFICANCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Slab avalanches studied in Canada have an average thickness of

A	Do not reject Ho (z=-1.96)
B	Reject Ho (z=-1.57)
C	Do not reject Ho (z=-1.96)
D	Reject Ho (z=-1.57)

Explanation:

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TESTS OF SIGNIFICANCE