Is the Conclusion Fitting?
Does a new pair of Levi's® jeans shrink when washed? A random sample of 100 pairs of Levi's® jeans with a size 28-inch waist is planned and then they will be individually washed and then measured. State the null and alternate hypotheses for this situation.
- What significance level (alpha) might you use to conduct this hypothesis test? State it as a decimal:
- After data are collected the researcher can compute a p-value. Provide a possible p-value (different from alpha) that might be obtained. State it as a decimal to the thousandths place:
- It is important to avoid strict adherence to cut-offs and report the actual numerical P-value so the reader can make their own interpretation in the context of the problem. After comparing your answers in the above items, complete the following sentence with a word: "The p-value is than the alpha."
Based on your answer to the above item, rigidly using an arbitrary cutoff value for significance would lead to what conclusion about the null hypothesis: "We the null hypothesis."
What should be taken into account in drawing a conclusion from an hypothesis test?