If the type II error rate is .20, the power is

Suppose a researcher is planning a step-by-step smoking cessation program aimed at youth aged 16-18 years old that have been smoking for over a year. After 1 month, the program is intended to get people down below 1 pack of cigarettes (20 cigarettes) a week.  Suppose after 1 month, a group of 62 smokers in this age range are smoking an average of 11.6 cigarettes a week with a standard deviation of 2.7. Is there sufficient evidence that the cessation program is working? First,  though, set up your hypotheses and interpret your p-value correctly using the alpha level of 0.05. This means that a) you must give me the null and the alternative hypothesis. Then, (b) you must calculate z to be able to conclude whether the cessation program works. This means, give me the p-value (estimate if you must). If you don’t do all of this, you will not get full credit.

A database contains information on the wait times patients have reported in the emergency room to see a physician since the hospital opened 5 years ago. Suppose the wait times vary according to a normal distribution with mean wait time of 1.9 hours and a standard deviation of 0.7 hours. Based on a simple random sample of 23 patients at the hospital in the waiting room, what is the probability that they will have to wait for more than 2.5 hours?

Which of the following best describes the correct interpretation of a p-value resulting from a statistical test?

In which of the following scenarios does the central limit theorem most likely hold true?

A 45 year old woman presents with complaint of spontaneous bloody nipple discharge of her right breast. Upon examination, no palpable mass is noted and bloody discharge is noted upon expression. The most likely diagnosis is:

A 14 year old female presents to the clinic with complaint of heavy menstrual bleeding. Name 3 diagnoses to consider in the differential diagnosis.

High-grade cervical lesions are most associated with HPV types…

A 25 year old woman and her husband present to your office complaining of sexual dysfunction. They have been married for two months and have not had intercourse because “I just tense up down there” according to the woman. They read a book about sexual dysfunction and think the issue is vulvodynia. Which of the following would help in the diagnosis of vulvodynia?

A 55 year old woman presents to your office with complaint of leaking urine when she laughs or coughs. She has given up on going to aerobics classes because she frequently leaks urine while exercising.  Her symptoms best fit the definition for: