Homework answers / question archive / 1)If instead of finding a normal distribution in the low-compliance group the researcher discovers there are three individuals with scores that are substantially higher than the rest of the group, what type of skew would these outliers cause? 2)A) A patient in the high-compliance group has a score with a corresponding Z-score of B) What was her actual HAM-A score? Is she more or less anxious than the average patient in this group? If the researcher graphs the frequency distributions for the scores in each of the two groups, which group will have a flatter bell curve? Why? 3)A) Another patient in the low-compliance group has a score with a corresponding Z-score of −1

1)If instead of finding a normal distribution in the low-compliance group the researcher discovers there are three individuals with scores that are substantially higher than the rest of the group, what type of skew would these outliers cause? 2)A) A patient in the high-compliance group has a score with a corresponding Z-score of B) What was her actual HAM-A score? Is she more or less anxious than the average patient in this group? If the researcher graphs the frequency distributions for the scores in each of the two groups, which group will have a flatter bell curve? Why? 3)A) Another patient in the low-compliance group has a score with a corresponding Z-score of −1

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1)If instead of finding a normal distribution in the low-compliance group the researcher discovers there are three individuals with scores that are substantially higher than the rest of the group, what type of skew would these outliers cause?

2)A) A patient in the high-compliance group has a score with a corresponding Z-score of B) What was her actual HAM-A score? Is she more or less anxious than the average patient in this group? If the researcher graphs the frequency distributions for the scores in each of the two groups, which group will have a flatter bell curve? Why?

3)A) Another patient in the low-compliance group has a score with a corresponding Z-score of −1.5. What was his actual HAM-A score? Was he more or less anxious than the average patient in this group? B) The researcher knows that, with these results, 68% of her subjects in the low-compliance group scored in what range on the HAM-A?

4)A) What level of measurement are the instrument items? B) What is the median score in the low-compliance group? C) A patient in the low-compliance group scores 26. Is this patient more or less anxious than average in this group?

5) Hip replacement patients have the same probability of being on oral anticoagulants as the orthopedic patients in your previous study, and you have four in your daily assignment. Calculate the number of patients with hip replacements who you anticipate would need oral anticoagulants.

6)A) Calculate the probability that orthopedic patients are given oral anticoagulants. B) Calculate the probability that orthopedic patients are given subcutaneous anticoagulants. C) Based on this sample, what is the probability that an orthopedic patient will be given some form of anticoagulant?

7)A) The follow-up cohort study reports a mean of 5 and a standard deviation of 1. What would this change do to the curve? B) Based on this sample, calculate the probability that orthopedic patients are given IV anticoagulants

8)A) What is an appropriate measure of central tendency? B) Where do 68% of the sample responses fall? C) If instead the results show a mean of 4 and a standard deviation of 1, but they remain normally distributed, what would this change do to the curve?

9)A) Complete the cumulative frequency column B) How many subjects had their antibody levels reported? C) What antibody level was the mode? D) What antibody level was the median?

10)A) What percentage of mothers reported less than or equal to moderate pain and frustration? B) What level of measurement is the nursing pain and frustration? C) How could you increase the level of measurement?

11)A) What is the mode for nursing pain and frustration? B) What is the median for nursing pain and frustration? C) What percentage of mothers continued to nurse for the full 6 weeks with minimal pain and frustration?

12)A) Calculate the standard deviation B) If the sample is normally distributed, 68% of the responses are within what range? C) If a study reports that you have a normally distributed sample with a mean age of 17.3 years, what is the median?

13)A) Which age group has the highest incidence of chlamydia? What explanations might the researchers offer about this data? B) Which group has the lowest incidence of chlamydia? What explanations might the researchers offer about this data?

14)A) Your colleague has a pending job offer and decides he will accept the offer in Delaware because too many people die in California every year. Do you agree with his decision? Why or why not? B) Which is more effective for presenting the data about mortality rates: the table or the bar chart? Why?

15)A) The nurse would like to determine if more ocular injuries are associated with wine bottles from Sharespeak Winery or with wine bottles from Francesco’s winery. What would be the independent variable? B) What would be the dependent variable in review question 23?

16) When the nurse looks at her data and the histogram, it is apparent that more ocular injuries from bottle corks occur in October (which is wine fermentation season) and January. She also notices that more of the injuries involve the right eye. Provide a reasonable explanation for both the January peak and the prevalence of the right-eye injuries.

17) An emergency room nurse working in a hospital in the wine region of the Finger Lakes in New York has noticed a seasonal trend for ocular injuries from bottle corks. She would like to illustrate this graphically and develops a histogram. Why might she prefer a histogram to a bar chart?