hi, please help with these mcqs

Question 10 (2 points) If the t-statistic for the above mileage data is 2.94, and if it has a right sided rejection region at the 2.5% significance level, which of the following is/are TRUE? Mark all that apply. Marks will be deducted for incorrect answers. Test statistic falls in the acceptance region Test statistic falls in the rejection region Null Hypothesis is accepted Critical value, t = 2.571 Null Hypothesis is rejected Critical value, t = 3.365(v6 ) ) Question 9 (1 point) Assuming mileages are normally distributed, if you want to conclude whether the use of gasoline additive increases the mileage, what are all the possible NULL and alternate hypothesis? Mark all that apply. Marks will be deducted for incorrect answers. Ho : Ha 0 O Ho : Ha - 0; Ha : Ha # 0 Ho : Ha > 0; Ha : Ma = 0 Ho : Ha - 0; Ha : Ma > 0Question 8 (1 point) Which of the following correctly represent the 95% confidence interval to infer the mean ud? Mark all that apply. Marks will be deducted for incorrect answers. 1.43 Md > 1.72 - 2.571 6 O 1.43 Md 1.72 - 2.015 V6 1.43 Ma