The one-sample t statistic for testing
H0: μ = 20
Ha: μ < 20
based on n = 7 observations has the value
t = −1.89.
(a)
What are the degrees of freedom for this statistic?
(b)
Between what two values does the P-value of the test fall? (You may use Table D.)
A) 0.005 < P < 0.010
B) .01 < P < 0.02
C) 0.02 < P < 0.025
D) 0.025 < P < 0.05
E) 0.05 < P < 0.1
(c)
If you have software available, find the exact P-value. (Round your answer to four decimal places.)
A) Degrees of freedom = (n-1) = 7-1 = 6
One sample student 't' statistic follows 't' distribution with (n-1) degrees of freedom
B) (E)
0.05 < P < 0.1
C) P-Value = 0.0538 (one-tail) at '6' degrees of freedom
The one-sample t statistic for testing H0: μ = 20 Ha: μ < 20 based on...
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