Question

1. If you are collecting your data for your research proposal. You decide to use a convenience sample rather than a random sample because it is easier and less expensive. How does this choice affect your conclusion?

2. If the null hypotheses is rejected, what is the relationship between p-value and significance level?

Answer 1

1. While using convenience sampling there is a possibility of bias hence the sample chosen won't be giving the exact result as it will have a bias.

Also in convinienco sampling there is high possibility of sampling error. This is pretty relevant as if the sample is biased it would definitely lead to sampling error.

And hence the results obtained cannot be generalized.

2. When the p value is less than equal to level of significance alpha we reject the null hypothesis.