Question 12 Which of the following is true? (:1 The variance of the distribution of all possible sample means is equal to the square of the population standard deviation D The variation of the distribution of all possible sample means is equal to the square of the sample standard deviation 0 The variance of the distribution of all possible sample means is equal to the standard deviation of the distribution of means squared Question 13 For the following problem, please round to two decimal places: For a particular known population. p = 9 and o2 = 1D. A researcher conducts a study in which ? participants are given an experimental procedure. When testing the hypothesis that the population these i\" participants represent is different from the known population, the comparison distrihution's variance would he: Question 14 2 pts For the following problem, please round to two decimal places: A researcher is interested in how affectionate pet owners are. She found that the general population distribution is skewed to the right, the mean degree of affection is 82.9, and the standard deviation is 14.78. She was then interested in finding out whether cat owners are less affectionate than other pet owners. She samples a group of 100 cat owners and finds that their mean is 54.8. What is the standard deviation of the comparison distribution