# E | Solution Sheets

### E | Solution Sheets

#### Hypothesis Testing With One Sample

Class Time: __________________________

Name: _____________________________________
1. H0: _______
2. Ha: _______
3. In words, clearly state what your random variable $X¯X¯$ or $P′P′$ represents.
4. State the distribution to use for the test.
5. What is the test statistic?
6. What is the p-value? In one or two complete sentences, explain what the p-value means for this problem.
7. Use the previous information to sketch a picture of this situation. Clearly, label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
Figure E1
8. Indicate the correct decision (reject or do not reject the null hypothesis), the reason for it and write appropriate conclusions using complete sentences."
1. Alpha: _______
2. Decision: _______
3. Reason for decision: _______
4. Conclusion: _______
9. Construct a 95 percent confidence interval for the true mean or proportion. Sketch of the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval.
Figure E2

#### Hypothesis Testing With Two Samples

Class Time: __________________________

Name: _____________________________________
1. H0: _______
2. Ha: _______
3. In words, clearly state what your random variable $X¯1−X¯2X¯1−X¯2$, $P′1−P′2P′1−P′2$ or $X¯dX¯d$ represents.
4. State the distribution to use for the test.
5. What is the test statistic?
6. What is the p-value? In one to two complete sentences, explain what the p-value means for this problem.
7. Use the previous information to sketch a picture of this situation. Clearly label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
Figure E3
8. Indicate the correct decision (reject or do not reject the null hypothesis), and write appropriate conclusions using complete sentences.
1. Alpha: _______
2. Decision: _______
3. Reason for decision: _______
4. Conclusion: _______
9. In complete sentences, explain how you determined which distribution to use.

#### The Chi-Square Distribution

Class Time: __________________________

Name: ____________________________________
1. H0: _______
2. Ha: _______
3. What are the degrees of freedom?
4. State the distribution to use for the test.
5. What is the test statistic?
6. What is the p-value? In one to two complete sentences, explain what the p-value means for this problem.
7. Use the previous information to sketch a picture of this situation. Clearly label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
Figure E4
8. Indicate the correct decision (reject or do not reject the null hypothesis) and write appropriate conclusions, using complete sentences.
1. Alpha: _______
2. Decision: _______
3. Reason for decision: _______
4. Conclusion: _______

#### F Distribution and One-Way ANOVA

Class Time: __________________________

Name: ____________________________________
1. H0: _______
2. Ha: _______
3. df(n) = ______ df(d) = _______
4. State the distribution to use for the test.
5. What is the test statistic?
6. What is the p-value?
7. Use the previous information to sketch a picture of this situation. Clearly label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
Figure E5
8. Indicate the correct decision (reject or do not reject the null hypothesis) and write appropriate conclusions, using complete sentences.
1. Alpha: _______
2. Decision: _______
3. Reason for decision: _______
4. Conclusion: _______