The test statistic of z=2.37 is obtained when testing the claim that p>0.2.
a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.
b. Find the P-value.
c. Using a significance level of α=0.10, should we reject H0 or should we fail to reject H0?
a) right-tailed
b) p-value = P(Z > 2.37) = 1 - P(Z < 2.37) = 1 - 0.9911 = 0.0089
c) since p-value is less than significance level, we should reject H0.
we reject H0
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