Answer the following
7. It is the value on the t distribution whose left tail probability is 93% and whose right-tail probability is 7%. A. left t-value C. 93rd percentile B. right t-value 8. In identifying a percentile using the t-table, what information should be identified D. 7th percentile first? A. degrees of freedom only B. degrees of freedom and the given percentage C. degrees of freedom and the area to the left tail of the t-distribution D. degrees of freedom and the area to the right tail of the t-distribution 9. Which of the following values is the 90th percentile of the t-distribution with 10 degrees of freedom? A. 1.363 B. 1.372 C. 1.383 D. 1.812 10. What is the 95th percentile of the t-distribution if the sample size is 15? A. 1.771 B. 1.761 C. 1.753 D. 1.345 1 1. If the degree of freedom is 24, what is the 95th percentile of the t-distribution? A. 1.711 B. 1.714 C 1.717 D. 2.064 12. If the 99th percentile of the t-distribution is 2.528, what is the degree of freedom? A. 17 B. 18 C. 19 D. 20 13. To what percentile of the t-distribution does 1.337 belong if the sample size is 17? A. 90th B. 93rd C. 95th D. 99th 14. What is the 50th percentile of a t distribution with 45 degrees of freedom? A. 1.684 B. 0.50 C. O D. -1.684 15. Using the t-table, find the area to the left of 2.15 under the t-distribution with 21 degrees of freedom? A. between 0.98 to 0.99 C. between 0.95 to 0.975 B. between 0.975 to 0.98 D. between 0.90 to 0.95Answer the following problems. I. Find the values of t for which the area on the right tail of the t-distribution is on and the number of degrees of freedom is equal to: a. 15 b. 28 c. 100 2. Find the 99th percentile of the t-distribution with 18 degrees of freedom 3. Find the 90th percentile of the t-distribution if the sample size is 25.1. If the area of the shaded part of the t-distribution below is 0.15, what is the area of the unshaded region? A. 0. 15 B. 0.75 C. 15% D. 0.85 2. Using the t-table, if the t-value is -1.708 and the shaded region is on the left of the t-distribution, what is the area of the unshaded region? A. 0.05 B. 0.10 C. 0.90 D. 0.95 3. Which t-distribution corresponds to t-value of 2.567 and whose shaded area on the right tail of the t-distribution is 0.01? A. a t distribution with 7 degrees of freedom B. a t distribution with 17 degrees of freedom C. a t distribution with 38 degrees of freedom D. a t distribution with infinite degrees of freedom 4. Using the t table, if the t-value is 2.093 and the shaded area is on the right of the t-distribution, what are the degrees of freedom? A. 0.025 B. 1.9 C. 19 D. 20 5. The shaded region is on the left tail of the t-distribution. If the degree of freedom is 25 and the area of the shaded region is 0.05, what is the value of t? A. 2.059 B. 1.708 C. 1.316 D. -1.708 6. Using the t-table, find the area to the right of 1.83 under the t- distribution with 18 degrees of freedom? A. between 0.01 to 0.02 C. between 0.025 to 0.05 B. between 0.02 to 0.025 D. between 0.05 to 0.10
