Question

In: Statistics and Probability

A clinical trial tests a method designed to increase the probability of conceiving a girl. In...

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study

365 babies were​ born, and 292 of them were girls. Use the sample data to construct a 99​%confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?

Solutions

Expert Solution

At 99 % CI for proportion is ( 0.75 , 0.85 )

Therefore, since the confidence interval technically contains 0.75 - 0..80, which is the more than 50/50 chance of having a girl.so the methods appear to be effective.

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 650 babies were​ born, and 325 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 390 babies were​born, and 312 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 360360 babies were​ born, and 288288 of them were girls. Use the sample data to construct a 9999​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective? nothingless than< pless than<nothing ​(Round to three decimal places as​ needed.)
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 300 babies were​ born, and 255 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective? less than< pless than< ​(Round to three decimal places as​ needed.)
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the​ study, 357 babies were​ born, and 201 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this​ method, the probability of a baby being a girl is greater than 0.5. Use this information to answer the following questions. a. List the null and alternative hypothesis. b. P-value = c. What is the conclusion?...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 400 babies were​ born, and 320 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective? ? < p < ? ​(Round to three decimal places as​ needed.) Does the method appear to be​ effective? No​, the proportion of girls...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 520 babies were​ born, and 286 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
A clinical trial tests a method designed to increase the probability of conceiving a girl. In...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 532 babies were​ born, and 266 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. __________<p<______________ ​(Round to three decimal places as​ needed.)
A critical trial tests a method designed to increase the probability of conceiving a girl. In...
A critical trial tests a method designed to increase the probability of conceiving a girl. In the study 300 babies were born, and 270 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born (?<p<?). Based on the result, does the method appear to be effective? yes or no.
A clinical trial was conducted using a new method designed to increase the probability of conceiving...
A clinical trial was conducted using a new method designed to increase the probability of conceiving a girl. As of this​ writing, 962 babies were born to parents using the new​ method, and 863 of them were girls. Use a 0.01 significance level to test the claim that the new method is effective in increasing the likelihood that a baby will be a girl. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT