The number of deaths due to firearms in the United States between 1968 and 1993 are given below
| year |
firearm deaths (thousands) |
| 1968 |
23 |
| 1969 |
24 |
| 1970 |
27 |
| 1971 |
29 |
| 1972 |
30 |
| 1973 |
31 |
| 1974 |
33 |
| 1975 |
32 |
| 1976 |
30 |
| 1977 |
32 |
| 1978 |
31 |
| 1979 |
33 |
| 1980 |
34 |
| 1981 |
34 |
| 1982 |
33 |
| 1983 |
30 |
| 1984 |
31 |
| 1985 |
32 |
| 1986 |
34 |
| 1987 |
33 |
| 1988 |
34 |
| 1989 |
35 |
| 1990 |
37 |
| 1991 |
39 |
| 1992 |
38 |
| 1993 |
41 |
Answer the following using the research hypothesis, "there is a correlation between year and number of firearm deaths in the US."
What is the value of the correlation coefficient between year and number of firearm deaths? (Answer to 3 decimal places)
How many degrees of freedom does your data have?
What is the critical value of your test statistic?
Is there evidence of a significant trend in firearm deaths over this period?