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djyliett [7]
3 years ago
8

Compute the value of the test statistic for testing H0: p = 0.1 vs. Ha: p ≠ 0.1 for n = 480, mc061-1.jpg= 0.12.

Mathematics
1 answer:
spin [16.1K]3 years ago
3 0
Given that hypothesis test with

H_0:p=0.1 \\ H_a:p\neq0.1

where n = 480 and \hat{p}=0.12.

The test statistics is given by

z= \frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}  \\  \\ =\frac{0.12-0.1}{\sqrt{\frac{0.1(1-0.1)}{480}}} \\  \\ = \frac{0.02}{\sqrt{\frac{0.1(0.9)}{480}}} = \frac{0.02}{\sqrt{\frac{0.09}{480}}}  \\  \\ = \frac{0.02}{\sqrt{0.0001875}} = \frac{0.02}{0.0137}  \\  \\ =1.46
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