A sample of size 81 is taken from a population with unknown mean and standard deviation 4.5. In a test of Ho: μ = 5 vs. Ha: μ< 5, if the sample mean was 4, which of the following is true? (i) We would fail to reject the null hypothesis at a = 0.01. (ii) We would fail to reject the null hypothesis at a = 0.05. (iii) We would fail to reject the null hypothesis at a = 0.10. O only (iii) O only (i) both (i) and (ii) all of them both (ii) and (iii)

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A sample of size 81 is taken from a population with unknown mean and standard deviation 4.5.
In a test of Ho: μ = 5 vs. H₂: μ< 5, if the sample mean was 4, which of the following is true?
(i) We would fail to reject the null hypothesis at a = 0.01.
(ii) We would fail to reject the null hypothesis at a = 0.05.
(iii) We would fail to reject the null hypothesis at a = 0.10.
only (iii)
only (i)
both (i) and (ii)
all of them
both (ii) and (iii)
m Ju A
MacBook Pro
8
W
P
एक
zoom
(
Transcribed Image Text:Q A sample of size 81 is taken from a population with unknown mean and standard deviation 4.5. In a test of Ho: μ = 5 vs. H₂: μ< 5, if the sample mean was 4, which of the following is true? (i) We would fail to reject the null hypothesis at a = 0.01. (ii) We would fail to reject the null hypothesis at a = 0.05. (iii) We would fail to reject the null hypothesis at a = 0.10. only (iii) only (i) both (i) and (ii) all of them both (ii) and (iii) m Ju A MacBook Pro 8 W P एक zoom (
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