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Artificial Sweetener and Bladder Cancer

Scenario 7
A research team wanted to determine if there is an association between an artificial sweetener and developing bladder cancer. They randomly selected individuals into the exposure group (Healthy individuals that consume artificial sweetener in diet soda; 1 L/day) and compare them to a randomly selected control group (Healthy individuals that do not consume artificial sweetener; 1L/day). They followed the subjects for a period of time 10 years. The data are summarized in the table below.

Table 2. Artificial Sweetener and Bladder Cancer

Developed Bladder Cancer Did Not Develop Bladder Cancer
Consume Artificial sweetener 75 325
Do Not Consume Artificial sweetener 50 350
  1. What is the null hypothesis equation for this experiment?Answer: ___________
  2. What is the value of n for each group?
    Answer: ___________
  3. What statistical test would you use?

A     2 proportion z-test
C     Relative Risk
D     2 sample t-test

Answer: ___________ Risk

  1. Based on the statistical test you chose, do you accept or reject the null hypothesis at P=0.05? Please paste your data output file in the area belowAnswer: ___________
  1. What is the 95% confidence interval for this experiment?
    Answer: _____________
  • What is the power of this statistical test? Please paste your data output file in the area below
    Answer: ___________
  • Assuming that the expected relative risk and expected proportion in unexposed controls remained the same, how many samples are needed to achieve a power level of 0.80? Please paste your data output file in the area below
    Answer: ___________


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Artificial Sweetener and Bladder Cancer was first posted on July 30, 2019 at 11:25 am.
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