3 questions using statcrunch

Hello! These are the 3 questions I need help with

  1. Write the null and alternative hypothesis for the hypothesis test of checking whether the high and low are different
  2. With StatCrunch, conduct the hypothesis test. What is the test statistics? What is the p-Value? State the appropriate conclusion
  3. With a level of significance of .02, construct a confidence interval for the difference between High and Low