A clinical trial was conducted using a new method designed to increase the probability of conceiving a boy. As of this writing, 291 babies were born to parents using the new method, and 226 of them were boys. Use a 0.05 significance level to test the claim that the new method is effective in increasing the likelihood that a baby will be a boy. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.
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, 944 babies were born to parents using the new method, and 875 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 nullhypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion...
A clinical trial was conducted using a new method designed to increase the probability of conceiving a boy. As of this writing, 304 babies were born to parents using the new method, and 245 of them were boys. 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 boy. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final...
A research Institute conducted clinical trials of a method designed to increase the probability of conceiving a boy. Among 141 babies born to parents using the method, 121 were boys , identify the margin or error and the 95% confidence interval for these clinical trials. (round to three decimal places as needed.
A research institute conducted clinical trials of a method designed to increase the probability of conceiving a boy. Among 147 babies born to parents using the method, 118 were boys. Identify the margin of error and the 95% confidence interval for these clinical trials. The margin of error is____. (Round to three decimal places as needed.) Construct the 95% confidence interval. _____< p < _____ (Round to three decimal places as needed.)
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study, 407 babies were born, and 216 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. Which of the following is the hypothesis test to be conducted? O A. Ho:...
An institute conducted a clinical trial of its methods for gender selection. The results showed that 526 of 921 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.1 significance level to test the claim that the method increased the likelihood of having a boy. Find the null and alternative hypothesis. H0: p<0.5 p>0.5 p=0.5 p≠0.5 H1: p<0.5 p=0.5 p≠0.5 p>0.5 If we consider + to represent a boy, then how many...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 400 babies were born, and 340 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 the study 400 babies were born, and 340...
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 604 babies were born, and 302 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 the study 580 babies were born, and 319 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 the study 415 babies were born, and 332 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? O No, the proportion of girls is...