Let us Practice More Activity 5: What is My Value? Directions: Find the critical value of the following. 1. one-tailed test, o known, a , n=34 2. two-tailed test, o unknown,-8.05 n=23 3. right-tailed test, o unknown, " n=15 4. one-tailed test, o known, a 1=37 5. left-tailed test, o known, 0=0 05, n=36 Activity 6. Reject It! Directions: Find the rejection region for each hypothesis test based on the information given. 1. Hr: p = 65 Ha: 1 = 65 a=0.05 n=9 o=unknown 2. Hr: u = 2.9 Ha: p > 2.9 a=0.01 n=50 o=known Activity 7. Let's Do Sketch! Directions: Sketch the graph given the critical value and rejection region. 1. ?5 - or ?2 2. 25 - 1.771 1.771 28 Activity 8. Think Critically! Directions: Identify the critical value of each given problem. Find the rejection region and sketch the curve on a separate sheet of paper. 1. A fast food restaurant cashier claimed that the average amount spent by the customers for dinner is $ 125.00. Over a month period, a sample of 50 customers was selected and it was found that the average amount spent for dinner was P130.00. Using 0.05 level of significance, can it be concluded that the average amount spent by customers is more than F125.00? Assume that the population standard deviation is P7.00. 2. According to the radio announcer, the average price of kilogram of pork liempo is more than F210.00. However, a sample of 15 prices randomly collected from different markets showed an average of P215.00 and standard deviation of F9.00. Using 0.05 level of significance, is there sufficient evidence to conclude that the average price of pork liempo is more than P210.00