PSTAT 120 Applets

Two Sample Z Test

Value Formula

\(H_0: \mu_1 - \mu_2 = \)

\(\alpha =\)

Significance level

\(H_1: \mu_1 - \mu_2 \) \(=\)

\(\bar{x}_1 =\)

Sample 1 mean

\(\bar{x}_2 =\)

Sample 2 mean

\(\sigma_1 =\)

Standard deviation 2

\(\sigma_2 =\)

Standard deviation 1

\(n_1 =\)

Sample 1 size

\(n_2 =\)

Sample 2 size

Enter numbers separated by commas

Sample 1

Sample 2

Test Statistic —

P-Value —

Critical Value —

Decision

\( \text{—} \)

Critical Value Rule

\( \text{—} \)

P-Value Rule

\( \text{—} \)