Question

(22.09) All euros have a national image on the "heads" side and a common design on the "tails" side. Spinning a coin, unlike tossing it, may not give heads and tails with equal probabilities. Polish students spun the Belgian euro 245 times, with its portly king, Albert, displayed on the heads side. The result was 139 heads. Test the hypothesis that the proportion of times a Belgian Euro coin spins heads equals 50% at alpha = 0.05 .

The test statistic is z = _____ with P-value_____ . (Use three decimals on both.)

The null hypothesis is:

a. rejected

b. not rejected

Answer 1

from above test statistic z =2.107 ( please try 2.108 if this comes wrong)

p value =0.035

The null hypothesis is: a. rejected