The coin biased toward heads?
a) Show your decision rule and calculations.
b) Compute a p-value and interpret it.
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Hypotheses:
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H0: p = 0.5 vs. HA: p > 0.5
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Level of Significance:
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10%
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Decision Rule:
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Reject the null hypothesis if p-value < 0.1
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Calculations:
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Hypothesis test for proportion vs hypothesized value
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Observed Hypothesized
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60n
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60
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std. error
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0.0645
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z
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2.06
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p-value (one-tailed, upper)
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.0197
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30.X
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37.98
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30/60 p (as fraction)
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38/60
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0.5p (as decimal)
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0.633
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