Please select correct one

Using his raw data, he calculates a sample mean of x = 405.0 and a sample standard deviation of s = 189.3. Additionally, pewpew a suppose that Facebook has reported that the standard deviation for the number of Facebook friends for all users is o = 203.4. The band's manager plans to use this information to construct a 95% z-confidence interval for the mean friend count for fans of the band. Is this an appropriate use of a z-confidence interval? Yes, because sample means from any distribution are always normally distributed regardless of sample size as long as there are no outliers. No, because the sample standard deviation is different from the standard deviation for all Facebook users. Yes, because the population standard deviation for the number of Facebook friends for all users is given and there are no outliers in the data set. No, because the sample size is too small given the distribution of the number of Facebook friends is not known to be normal. cause a sample that only includes fans of the band is not random