Final answer:
To find the value of p, the sample proportion who favor stricter gun laws, divide the number of adults who felt the laws should be more strict by the total number of adults in the sample.
Step-by-step explanation:
X = the number of adults who felt the laws covering the sale of firearms should be more strict. P' = the proportion of adults who felt the laws covering the sale of firearms should be more strict.
To find the value of p, the sample proportion who favor stricter gun laws, we divide the number of adults who felt the laws should be more strict (654) by the total number of adults in the sample (1087):
p = 654/1087
p ≈ 0.601 (rounded to three decimal places)