The coin biased toward heads?
a) Show your decision rule and calculations.
b) Compute a pvalue and interpret it.
Hypotheses:

H0: p = 0.5 vs. HA: p > 0.5

Level of Significance:

10%

Decision Rule:

Reject the null hypothesis if pvalue < 0.1

Calculations:

Hypothesis test for proportion vs hypothesized value

Observed Hypothesized

60n

60

std. error

0.0645

z

2.06

pvalue (onetailed, upper)

.0197

30.X

37.98

30/60 p (as fraction)

38/60

0.5p (as decimal)

0.633
