# Question

a. What is a hypothesis? In particular, is it a statement about the population or the sample?

b. How is the role of the null hypothesis different from that of the research hypothesis? Which one usually includes the case of pure randomness? Which one has the burden of proof? Which one has the benefit of the doubt?

c. Suppose you decide in favor of the null hypothesis. Is this a weak or a strong conclusion?

d. Suppose you decide in favor of the research hypothesis. Is this a weak or a strong conclusion?

e. “A null hypothesis can never be disproved.” Comment.

b. How is the role of the null hypothesis different from that of the research hypothesis? Which one usually includes the case of pure randomness? Which one has the burden of proof? Which one has the benefit of the doubt?

c. Suppose you decide in favor of the null hypothesis. Is this a weak or a strong conclusion?

d. Suppose you decide in favor of the research hypothesis. Is this a weak or a strong conclusion?

e. “A null hypothesis can never be disproved.” Comment.

## Answer to relevant Questions

a. Briefly describe the steps involved in performing a two-sided test concerning a population mean based on a confidence interval. b. Briefly describe the steps involved in performing a two-sided test concerning a population ...a. What is a type I error? Can it be controlled? Why or why not? b. What is a type II error? Can it be controlled? Why or why not? c. When, if ever, is it correct to say that “the null hypothesis is true with probability ...a. Why might a one-sided test be appropriate for the preceding problem? b. Identify the null and research hypotheses for a one-sided test, using both words and mathematical symbols. c. Perform a one-sided test at the 5% ...Some frozen food dinners were randomly selected from this week’s production and destroyed in order to measure their actual calorie content. The claimed calorie content is 200. Here are the calorie counts for each ...Dishwasher detergent is packaged in containers that claim a weight of 24 ounces. Although there is some variation from one package to another, your policy is to ensure that the mean weight for each day’s production is ...Post your question

0