A random sample of 20 recent weddings in a country yielded a mean wedding cost of $26,368 21. Assume that recent wedding costs in this country are normally distributed with a standard deviation of $8500 Complete parts (a) through (c) below. CE The 95% confidence interval is from $to $ S (Round to the nearest cent as needed) b. Interpret your result in part (a). Choose the correct answer below. O A. We can be 95% confident that the sample cost of recent weddings in this country is somewhere within the confidence interval OB. We can be 95% confident that the mean cost of all recent weddings in this country is somewhere within the confidence interval OC. The mean cost of all recent weddings in this country is somewhere within the confidence interval OD. We can be 95% confident that any randomly selected recent wedding cost in this country is somewhere within the confidence interval c. Does the mean cost of all recent weddings in this country le in the confidence interval obtained in part (a)? Explain your answer O A Yos, since the confidence interval must contain the sample and population means OB. No since there is a 5% chance that the population mean does not in the confidence interval Next A random sample of 20 recent weddings in a country yielded a mean wedding cost of $26,368 21. Assume that recent wedding costs in this cou distributed with a standard deviation of $8500. Complete parts (a) through (c) below. U. I piel your les partid). Le uve une answer to O A. We can be 95% confident that the sample cost of recent weddings in this country is somewhere within the confidence interval. OB. We can be 95% confident that the mean cost of all recent weddings in this country is somewhere within the confidence interval OC. The mean cost of all recent weddings in this country is somewhere within the confidence interval OD. We can be 95% confident that any randomly selected recent wedding cost in this country is somewhere within the confidence interval c. Does the mean cost of all recent weddings in this country lie in the confidence interval obtained in part (a)? Explain your answer. O A. Yes, since the confidence interval must contain the sample and population means OB. No, since there is a 5% chance that the population mean does not lie in the confidence interval OC. The sample mean may or may not lie in this interval, but we can be 95% confident that it does OD. The population mean may or may not lie in this interval but we can be 95% confident that it does