Solution
(a) Z = 1.44
p value ( 2 tailed) = 0.1499
do not reject the null as p value >
critical value at +-0.005 = 2.576
do not reject null hypothesis as z critical value > z test statistic
(b) z = -3.01
p value = 0.0026
Reject the null hypothesis as p value <
Z critical value = -2.576
Reject null hypothesis as z critical value < z test statistic
(c) Yes, as 95% CI = (100 +- margin of error)
Consider a two tailed hypothesis test. The null and alternative hypotheses are presented below Ho 100...
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