Question

Researchers Vogel et al. (JAMA, 2006) reported the following findings about the Study of Tamoxifen and Raloxifene (STAR), a study involving postmenopausal women who were at an increased risk for invasive breast cancer. Of the 9739 women randomly assigned to use tamoxifen daily, 158 developed invasive breast cancer sometime during the next five years, compared to 151 in the group of 10162 who were randomly assigned to use raloxifene daily. Is this an experiment or an observational study? Identify the explanatory and response variables. Also, identify whether each is categorical or quantitative. Organize the counts in a 2 × 2 table. Tamoxifen Raloxifene Total Developed cancer No cancer Total Round your answer to 4 decimal places, e.g. 0.0083. Find the observed difference in proportion of breast cancer cases between the tamoxifen and raloxifene users. difference - Answer *1: the absolute tolerance is +/-0.0002

State the appropriate null and alternative hypotheses in words. Explain why it would be okay to use the theory-based method (that is, normal distribution based method) to find ap value for this study. we can use a theory-based approach because we have o We can use a theory-based approach because we have more than 10 in each cell of our two-way table. C We can use a theory-based approach because we have less than 10 in each cell of our two-way table. We can use a theory-based approach because we have more than 20 in each cell of our two-way table. Use an appropriate applet to find and report the standardized statistic and theory-based p-value from the data. Round standardized statistic to 2 decimal places, eg. 0.83 and p-value to 4 decimal places, e.g. O,0083. Standardized statistic zl Theory-based p-value L Answer *1: the absolute tolerance is +/-0.01 1-1 t2 Answer *2: the absolute tolerance is +/-0.01

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
Researchers Vogel et al. (JAMA, 2006) reported the following findings about the Study of Tamoxifen and...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • In a study conducted in New Zealand, Parkin et al. randomly assigned volunteers to either wear...

    In a study conducted in New Zealand, Parkin et al. randomly assigned volunteers to either wear socks over their shoes (intervention) or wear usual footwear (control) as they walked downhill on an inclined icy path. Researchers standing at the bottom of the inclined path measured the time (in seconds) taken by each participant to walk down the path. Here are the summary statistics. Note that the data are fairly symmetric in both groups. n MeansD Intervention 1440.7 10.26 Control1438.510.65 The...

  • True/False A study by W. F. Woodward in 1970 explored whether taking a "narrow angle" or...

    True/False A study by W. F. Woodward in 1970 explored whether taking a "narrow angle" or a "wide angle" while rounding first base would increase your time to second base. Narrow angle Wide angle In Woodward's study, he used a stopwatch to time 22 different runners going from a spot 35 feet past home to a spot 15 feet before second. He had each runner use each method, with a rest period in between. Here are the summary statistics on...

  • 7.3.5 In a study of parents' perceptions of their children's size, researchers Kaufman et al. (Current...

    7.3.5 In a study of parents' perceptions of their children's size, researchers Kaufman et al. (Current Biology, 2013) asked parents to estimate their youngest child's height. The researchers hypothesized that parents tend to underestimate their youngest child's size because the youngest child is the baby of the family and everybody else is the family appears bigger compared to the baby The researchers also surveyed a sample of 35 parents about their eldest child's height. The parents overestimated their eldest child's...

  • We are going to assume the class is a group of policy makers at a large...

    We are going to assume the class is a group of policy makers at a large insurance company – ABC HMO. Part of our pay is based on the company's financial performance for the current year. Specifically, the company looks at actual vs. projected medical expenses per member. The expected is based on last year's actual adjusted for inflation. One of our planners read the below article in the NY Times and recommends we reduce our coverage of routine breast...

  • How many calories do you think you burn or expend with 60 minutes of walking on...

    How many calories do you think you burn or expend with 60 minutes of walking on the treadmill? An article that appeared in the American Journal of Men’s Health (2010) presented the results of a study conducted by researchers Harris and George, whose objective was to evaluate how accurately men can estimate their energy expenditure (EE) as measured in kilocalories (kcal). 82 normal-weight and overweight male participants, ages 21–45 years, were recruited from a large, urban university in South Florida....

  • My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your...

    My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your study sample 2. How have you selected your sample? 3. How will you select your sample population and give the rationale behind your decision Please type the solution on the keyboard so that I can copy and paste Q. No 1. Answer : Sickle cell disease : It is defined as it is a chronic heriditory form of Anemia, in which the red blood...

  • Develop a case study analysis in the following format Relevance of the case study to my...

    Develop a case study analysis in the following format Relevance of the case study to my work environment - application - learning impact CASE 4-1 Tambrands Overcoming Cultural Resistance Tampax, Tambrands's only product, is the best-selling tampon in their virginity if they use a tampon. When they go to the beach in the world, with 44 pencent of the global market North America and tiny bikinis, tampons arent their choike. Instead, hordes of women Europe account for 90 percent of...

  • 10. The Beck & Watson article is a Group of answer choices quantitative study qualitative study...

    10. The Beck & Watson article is a Group of answer choices quantitative study qualitative study 11. Beck & Watson examined participants' experiences and perceptions using what type of research design? Group of answer choices particpant obersvation phenomenology 12. Select the participants in the Beck & Watson study Group of answer choices Caucasian women with 2-4 children Caucasian pregnant women 13. In the Beck & Watson study, data was collected via a(n) Group of answer choices internet study focus group...

  • Do 5 minutes written presentation and an infographic or a poster: Design a Health Campaign: This...

    Do 5 minutes written presentation and an infographic or a poster: Design a Health Campaign: This assignment gives you the chance to design a strategic intervention for some kind of health issue. This is an opportunity to use your design skills to make a print ad, video spot, or social media campaign. Your media work (video, poster, social media campaign plan with infographic, etc.) must be accompanied by a rationale where you explain your methodology and how the evidence base...

  • A critical introduction into the study of religion. Explain why Martin treats religion as a social...

    A critical introduction into the study of religion. Explain why Martin treats religion as a social construct—both the category ‘religion’ and the stuff it denotes—using Kessler’s discussion of the Dao and Anselm as examples. How Society Works: Essentialism Animism and Essentialism According to some of the theories of primitive savages and primitive religion discussed briefly in Chapter 1, religion originated when ancient peoples attempted to understand and explain mysterious forces whose causes were beyond their primitive" understanding. What causes thunder?...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT