Answer:
Step-by-step explanation:
Given that a claim was made as
"People who often attend cultural activities, such as movies, sports events and concerts, are more likely than their less cultured cousins to survive the next eight to nine years, even when education and income are taken into account, according to a survey by the University of Umea in Sweden" (American Health, April 1997, p. 20).
a) Yes, this can be tested by conducting a randomized experiment. Selecing two groups of persons i who attend and other who do not attend and compare their life
This can be done from the data source already existing about persons who died recently under homogeneous conditions of environemnt
b) Yes, we can conclude provided random sample are taken and homogeneous conditions were followed
c) Yes, 100% true, though cannot say precisely how these helps as there is no scientific measurement, but it is a fact it improves health.
d) Other factors, are family history, bad habits, disease already present in the persons, etc.