QUESTION 10 Suppose we would like to test the claim that the average age of Douglas College students is more than 22 years old. We randomly select n= 250 students and determine that their mean age is X= 22.5 with sample standard deviation s = 4.1 years. What is the value of the t-statistic for this sample? Round to four decimal places. QUESTION 11 (previous question continuing...) What is the P-value for the sample data in the previous question? Round to four decimal places. QUESTION 12 (previous question continuing...) What is the correct conclusion of this hypothesis test? O a. We have sufficient evidence to support the claim, at the 5% significance level, that the average age of Douglas College students is more than 22 years old. O b. We have insufficient evidence to support the claim, at the 5% significance level, that the average age of Douglas College students is more than 22 years old. O c. We have sufficient evidence to reject the claim, at the 5% significance level, that the average age of Douglas College students is more than 22 years old. O d. We have insufficient evidence to reject the claim, at the 5% significance level, that the average age of Douglas College students is more than 22 years old