Consider the following hypothesis test for the mean difference. (Give your answers correct to four decimal places.)
(a) Determine the p-value for
Ho: μd = 0 and
Ha: μd > 0, with
n = 18 and t = 1.99.
(b) Determine the p-value for
Ho: μd = 0 and
Ha: μd ≠ 0, with n
= 19 and t = -1.89.
(c) Determine the p-value for
Ho: μd = 0 and
Ha: μd < 0, with
n = 29 and t = -2.7.
(d) Determine the p-value for
Ho: μd = 0.75 and
Ha: μd > 0.75, with
n = 5 and t = 3.42.
(a) Since , the hypothesis is right tailed test.
; From Excel "=TDIST(1.99,17,1)"
(b)
Since , the hypothesis is two tailed test.
; From Excel "=TDIST(1.89,18,2)"
(c)
Since , the hypothesis is left tailed test.
; From Excel "=TDIST(2.7,28,1)"
(d)
Since , the hypothesis is right tailed test.
; From Excel "=TDIST(3.42,4,1)"
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