The true average diameter of ball bearings of a certain type is supposed to be 0.5 inch. What conclusion is appropriate when testing Ho: μ = 0.5 versus H₂: μ ± 0.5 inch in each of the following situations? (a) n = 12, t = 1.8, α = 0.05 (b) (c) (d) Reject Ho Fail to reject Ho n = 12, t = -1.8, α = 0.05 Reject Ho Fail to reject Ho n = 26, t = -2.6, a = 0.01 Reject Ho Fail to reject Ho n = 26, t = -3.6 ☐ Reject Ho at any reasonable significance level Fail to reject Ho at any reasonable significance level

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10.4.3

The true average diameter of ball bearings of a certain type is supposed to be 0.5 inch. What conclusion is appropriate
when testing Ho: μ = 0.5 versus Ha: 0.5 inch in each of the following situations?
(a)
=
n = 12, t 1.8, α = 0.05
Reject Ho
Fail to reject Ho
(b)
(c)
(d)
n = 12, t = -1.8, α = 0.05
Reject Ho
Fail to reject Ho
26, t -2.6, a = 0.01
Reject Ho
Fail to reject Ho
n = 26, t = -3.6
Reject Ho at any reasonable significance level
Fail to reject Ho at any reasonable significance level
Transcribed Image Text:The true average diameter of ball bearings of a certain type is supposed to be 0.5 inch. What conclusion is appropriate when testing Ho: μ = 0.5 versus Ha: 0.5 inch in each of the following situations? (a) = n = 12, t 1.8, α = 0.05 Reject Ho Fail to reject Ho (b) (c) (d) n = 12, t = -1.8, α = 0.05 Reject Ho Fail to reject Ho 26, t -2.6, a = 0.01 Reject Ho Fail to reject Ho n = 26, t = -3.6 Reject Ho at any reasonable significance level Fail to reject Ho at any reasonable significance level
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