Fund the Value of zm'l that corresponds to a condence level of 89.43%. 2- Section 8.5 #20 Working with the Concepts 20. A simple random sample of 35 colleges and universities in the United States had a mean tuition of $18,702 with a standard deviation of $10,653. Construct a 95% confidence interval for the mean tuition for all colleges and universities in the United States. 3- For example, what sort of relationship does the GDP and m\" \"\"5\"\" #2) consumer spending holds? Negative or Positive? Can you help me with this? 4- Basically the confidence interval tells us more than just the possible range around the estimate. Can you tell the four basic steps of construction a confidence interval? 5- What factors made the data in your second question suitable for a confidence interval