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Q: The Genetics and IVF institute conducted a clinical trial of the YSORT method designed to increase the probability of conceiving a boy. Assuming 291
Q: The Genetics and IVF institute conducted a clinical trial of the YSORT method designed to increase the probability of conceiving a boy. Assuming 291 babies have been born and using the YSORT method with 239 being boys how can we use a significance level of 0.05 to test the claim that the YSORT method is effective in increasing the likelihood that a baby will be a boy?
- What is the null and alternate hypotheses written mathematically? what is the claim?
- What is the test statistic?
- How can we identify the rejection region (critical region) and fail to reject region? How do we show this by drawing a curve separating the rejection region from the fail to reject region using the critical value?
- What is the p-value and what does it mean?
- Should we reject or fail to reject the null using the p-value approach?
- What would our interpretation of the decision in the context of our claim?
- What is the type 1 error in this problem? what is its consequences in the context of the problem?
- Using the sample data to construct a 90% confidence interval, what would we estimate the proportion of boys? What does the confidence interval suggest about the claim that the YSORT method is effective in increasing the likelihood that a baby will be a boy? (P>0.5) (show using technology)
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