Question 22 3 pts The Queensland male koala has an average weight of 6.5kg. Male Koala's weights are normally distributed with a standard deviation of 0.82. Suppose that 15 randomly selected koalas were selected. What is the sampling distribution of the sample mean weight? O Normal with mean equal to 6.5kg and standard error equal to 0.82 / sqrt(15) O Normal with mean equal to 6.5kg and standard error equal to 0.82 O Cannot be determined. O Normal with mean equal to 6.5kg and standard error equal to 0.82 / 15Suppose that you wanted to estimate the population mean amount spent eating out per week by Gainesville families. In 2010, a survey found the sample standard deviation was 200 dollars. What size sample would you need to collect in order to make a 95% confidence interval with a margin of error of 15 dollars? O 27 O 583 O 683 O 783