QUESTION 3 Use the formula sheet to help you with this question from 6.1 D The Bureau of Transportation Statistics tells us that 80% of flights for a particular airline arrive on time. We examine a randome sample of 400 flights for this airline and compute the porportion of the sample flights that arrive on time. Compute the standard error for this statistic. Round your answer to two decimal places. Example answer. 0.09 QUESTION 4 This question is from section 5.1 hypothesis Tests using normal distributions We have an original sample statistic which is phato-phate=0.066. The null hypothesis is Ho: po-pc=0 The alternative hypothesis is Ha: po-pc>0 The standard error from the randomization distribution is 0.03 1. Use the test statistic formula to find the z value. hint there is a formula for this. Round to 1 decimal place 2. Use normal on statkey and find the p-value. Round to two decimal places 3. Do you Reject the null or Fail to reject the null? Use these exact words to answer the