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The one-sample t statistic for testing H 0 : = 40 H a : 40 from a sample of n = 15 observations has the

The one-sampletstatistic for testing

H₀:= 40

H_a:40

from a sample ofn=15observations has the valuet=2.79.

a)What are the degrees of freedom fort?

b)Between what two values does theP-value of the test fall?

c)Is the valuet=2.79statistically significant at the 5% level? Is it significant at the 1% level?

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