Question

Barry Beach was convicted of murder in 1983 and sentenced to life in prison without parole. In 2015, Governor Bullock commuted Beach's sentence after years of controversy surrounding Beach's confession, trial and subsequent conviction. A news program in Bozeman wanted to find out more about how people in Montana feel about Beach's release. The local program invited viewers to go to their website and indicate their opinions. At the end of the show, 72% of people who voted in the poll indicated they agreed with Bullock's decision.

Answer 1

1.

No, it is not valid as we don't know the sample size of the survey and also there is a problem of under-coverage in the experiment since only those who watch the news program will take part int he voting and hence the sample may not be representative of the population.

2.

It is a statistic because it is derived from the sample (those who voted).

3.

Convenience sample

4.

Sampling frame

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