Distinguished - Performs the following correctly: 1. Identifies the mean, standard error, and t-values for each gender. 2. Calculates confidence intervals for each gender. 3. Interprets interval results in light of equal pay question. 4. Compares results with the one sample t-test results from earlier.

Proficient - Performs the following with no more than one error: 1. Identifies the mean, standard error, and t-values for each gender. 2. Calculates confidence intervals for each gender. 3. Interprets interval results in light of equal pay question. 4. Compares results with the one sample t-test results from earlier.

Basic - Performs the following with no more than two errors: 1. Identifies the mean, standard error, and t-values for each gender. 2. Calculates confidence intervals for each gender. 3. Interprets interval results in light of equal pay question. 4. Compares results with the one sample t-test results from earlier.

Below Expectations - Performs the following with no more than three errors: 1. Identifies the mean, standard error, and t-values for each gender. 2. Calculates confidence intervals for each gender. 3. Interprets interval results in light of equal pay question. 4. Compares results with the one sample t-test results from earlier.

Non-Performance - There is no response to problem one, or it does not provide any correct responses to the question elements.

Distinguished - Performs the following correctly: 1. Identifies the mean difference, standard error, and t-values for each gender. 2. Calculates the CI for the mean difference. 3. Interprets interval result in light of equal pay question. 4. Compares results with the one sample t-test results from earlier. 5. Identifies why the difference CI is more accurate.

Proficient - Performs the following with no more than one error: 1. Identifies the mean difference, standard error, and t-values for each gender. 2. Calculates the CI for the mean difference. 3. Interprets interval result in light of equal pay question. 4. Compares results with the one sample t-test results from earlier. 5. Identifies why the difference CI is more accurate.

Basic - Performs the following with no more than two errors: 1. Identifies the mean difference, standard error, and t-values for each gender. 2. Calculates the CI for the mean difference. 3. Interprets interval result in light of equal pay question. 4. Compares results with the one sample t-test results from earlier. 5. Identifies why the difference CI is more accurate.

Below Expectations - Performs the following with no more than three errors: 1. Identifies the mean difference, standard error, and t-values for each gender. 2. Calculates the CI for the mean difference. 3. Interprets interval result in light of equal pay question. 4. Compares results with the one sample t-test results from earlier. 5. Identifies why the difference CI is more accurate.

Non-Performance - There is either no response to problem two, or it does not provide any correct responses to the question elements.

Distinguished - Performs the following correctly: 1. Identifies the null and alternate hypotheses. 2. Identifies the test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Proficient - Performs the following with no more than one error: 1. Identifies the null and alternate hypotheses. 2. Identifies the test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Basic - Performs the following with no more than two errors: 1. Identifies the null and alternate hypotheses. 2. Identifies the test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Below Expectations - Performs the following with no more than three errors: 1. Identifies the null and alternate hypotheses. 2. Identifies the test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Non-Performance - There is either no response to problem three, or it does not provide any correct responses to the question elements.

Distinguished - Performs the following correctly: 1. Identifies the null and alternate hypotheses. 2. Identifies the correct test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Proficient - Performs the following with no more than one error: 1. Identifies the null and alternate hypotheses. 2. Identifies the correct test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Basic - Performs the following with no more than two errors: 1. Identifies the null and alternate hypotheses. 2. Identifies the correct test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Below Expectations - Performs the following with no more than three errors: 1. Identifies the null and alternate hypotheses. 2. Identifies the correct test to use. 3. Uses the correct data. 4. Sets up the test correctly. 5. Answers the questions. 6. Provides a clear and accurate interpretation of the results.

Non-Performance - There is either no response to problem four, or it does not provide any correct responses to the question elements.

Distinguished - Provides thorough conclusions about the following issues: 1. Male and female pay inequality. 2. Consistency between and among different statistical measures of equality.

Proficient - Provides mostly accurate conclusions about the following issues but are slightly underdeveloped: 1. Male and female pay inequality. 2. Consistency between and among different statistical measures of equality.

Basic - Provides conclusions about the following issues but are underdeveloped or inaccurate: 1. Male and female pay inequality. 2. Consistency between and among different statistical measures of equality.

Below Expectations - Provides conclusions about the following issues but are significantly underdeveloped and inaccurate: 1. Male and female pay inequality. 2. Consistency between and among different statistical measures of equality.

Non-Performance - There is either no response to problem five, or it does not address the issue of equal pay for equal work statistical results to date.