A clinical trial was conducted to test the time to get a prognancy test result. Before treatment, 14 women were tested, they had a mean time of 3 man and a standard deviation of 1.9min. Assume that the sample values appear from a nocmally distributed population and construct a 99% confidence interval estimate of the mean time for a population to get a peegnancy test resut. 1) The is the best point estimate of the population mean. 2) Since the poputation is normally distributed and the a , then we can use th det f2dst 3) the critical value is 4) the lower limit is and the upper limit is 5) we are that the true mean of the population belongs to the confidence iterval it can be said whith 95% conhdence that the sample mean is within an Erro equal 2 of the true mean. Assume that o=4, determine the required sarnple size: 6) the critical value is 7) the sample size is A clinical trial was conducted to test the time to get a prognancy test result. Before treatment, 14 women were tested, they had a mean time of 3 man and a standard deviation of 1.9min. Assume that the sample values appear from a nocmally distributed population and construct a 99% confidence interval estimate of the mean time for a population to get a peegnancy test resut. 1) The is the best point estimate of the population mean. 2) Since the poputation is normally distributed and the a , then we can use th det f2dst 3) the critical value is 4) the lower limit is and the upper limit is 5) we are that the true mean of the population belongs to the confidence iterval it can be said whith 95% conhdence that the sample mean is within an Erro equal 2 of the true mean. Assume that o=4, determine the required sarnple size: 6) the critical value is 7) the sample size is