on: The mean annual tuition and fees in the 2013-2014 academic year for a sample of 20 private colleges in California was $32,000 with a standard deviation of $7200. A dotplot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in California is less than $35,000? Use the =α0.10 level of significance and the critical value method with the