# Question: For each of the following write out the null and

For each of the following, write out the null and alternative hypotheses, being sure to state whether the alternative is one-sided or two-sided.

a) A company reports that last year 40% of their reports in accounting were on time. From a random sample this year, they want to know if that proportion has changed.

b) Last year, 42% of the employees enrolled in at least one wellness class at the company’s site. Using a survey, they want to know if a greater percentage is planning to take a wellness class this year.

c) A political candidate wants to know from recent polls if she’s going to garner a majority of votes in next week’s election.

a) A company reports that last year 40% of their reports in accounting were on time. From a random sample this year, they want to know if that proportion has changed.

b) Last year, 42% of the employees enrolled in at least one wellness class at the company’s site. Using a survey, they want to know if a greater percentage is planning to take a wellness class this year.

c) A political candidate wants to know from recent polls if she’s going to garner a majority of votes in next week’s election.

## Relevant Questions

For each of the following, write out null and the alternative hypotheses, being sure to indicate whether the alternative is one-sided or two-sided. a) Consumer Repons discovered that 20% of a certain computer model had ...For the purchase amounts in Exercise 8: a) Construct a 90% confidence interval for the mean purchases of all customers, assuming that the assumptions and conditions for the confidence interval have been met. b) How large is ...For the confidence interval in Exercise 14 part a: a) To reduce the margin of error to about $4, how large would the sample size have to be? b) How large would the sample size have to be to reduce the margin of error to ...A company is interested in estimating the costs of lunch in their cafeteria. After surveying employees, the staff calculated that a 95% confidence interval for the mean amount of money spent for lunch over a period of six ...What are the chances your flight will leave on time? The U. S. Bureau of Transportation Statistics of the Department of Transportation publishes information about airline performance. Here are a histogram and summary ...Post your question