Below are the mean annual temperature and mortality rate for a type of breast cancer for sixteen European
Below are the mean annual temperature and mortality rate for a type of breast cancer for sixteen European cities. Joe, the researcher, wants to know if there is a correlation between mean annual temp and breast cancer rate.
| Mean Annual Temp (X) | Breast Cancer Rate (Y) |
| 51.3 | 102.5 |
| 49.9 | 104.5 |
| 50.0 | 100.4 |
| 49.2 | 95.9 |
| 48.5 | 87.0 |
| 47.8 | 95.0 |
| 47.3 | 88.6 |
| 45.1 | 89.2 |
| 46.3 | 78.9 |
| 42.1 | 84.6 |
| 44.2 | 81.7 |
| 43.5 | 72.2 |
| 42.3 | 65.1 |
| 40.2 | 68.1 |
| 31.8 | 67.3 |
| 34.0 | 52.5 |
- State the null and alternative hypothesis concerning the relationship between mean annual temperature and breast cancer rate and indicate the level of significance.
- Put this data into SPSS, find the Pearson correlation coefficient, and find the Spearman correlation coefficient. Paste these two tables and interpret the correlation coefficients.
- Create a table in your homework to show the test statistic and p-value for both the Spearman and Pearson correlation coefficient. Interpret the p-values.
- What does each p-value tell us in terms of the null hypothesis? (Interpret in two separate sentences – make sure to include to which correlation coefficient you are referring).
- What can we conclude? Which correlation coefficient is more appropriate? Why? Provide evidence (e.g., graphs, statistics) for your answer.
- We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data, we would like to create a model to predict systolic blood pressure from age.
| Age | SBP |
| 53 | 137 |
| 50 | 132 |
| 54 | 149 |
| 48 | 132 |
| 43 | 120 |
| 43 | 126 |
| 63 | 161 |
| 63 | 170 |
| 62 | 152 |
| 65 | 164 |
- State the null and alternative hypothesis.
- Write out the model with the beta coefficients.
- Put this data into SPSS, and find the parameter estimates. Write out the prediction equation. Interpret the prediction equation.
- Obtain the R 2 value and interpret.
- What is the overall test statistic from the ANOVA table? What is the test statistic for the slope coefficient? Are they equal or not equal? Why is this the case?
- Give a 95% CI around the predicted slope coefficient and interpret.
-
Using the prediction equation, what is the predicted systolic blood pressure for a
- 44 year old?
- 61 year old?
- 70 year old?
- Which of the above predictions should not be trusted? Why?
Price: $16.01
Solution: The downloadable solution consists of 7 pages, 901 words and 1 charts.
Deliverable: Word Document
Deliverable: Word Document
