The one-sample t statistic for testing H 0 : = 40 H a : 40 from a sample of n =12observations has the value t =2.76. (a) What are the degrees of

The one-sample t statistic for testing

H0: μ = 40

Ha: μ ≠ 40

from a sample of n = 12 observations has the value t = 2.76.

(a)

What are the degrees of freedom for t?

(b)

Locate the two critical values t* from the Table D that bracket t.

 < t < 

(c)

Between what two values does the P-value of the test fall?

0.005 < P < 0.01

0.01 < P < 0.02

0.02 < P < 0.04

0.04 < P < 0.05

0.05 < P < 0.1

(d)

Is the value t = 2.76 statistically significant at the 5% level?

Yes

No

Is it significant at the 1% level?

Yes

No

(e)

If you have software available, find the exact P-value. (Round your answer to four decimal places.)