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Activity 3. Identifying Test Statistic in a given Problem Identify the appropriate form of statistic to be used in the following problems. 01 bellsT He Thawod 1. A librarian of a school claims that all their grade 9 students read an average of 9 storybooks a month with a standard deviation of 2 books. A random sample of 50 grade 9 students read an average of 13 books a month. Use 0.05 level of significance. 2. The hospital record shows that the mean weight of newly born baby is greater than 7 Ibs. A researcher takes a sample of 25 newly born babies and found to have a mean weight of 6.97 Ibs with the standard deviation of 0.77 lbs. Test the claim at 0.05 level of significance. 3. A barangay captain claims that residents in his barangay have a mean number of less than 3 household pets. To test this claim, 550 residents were randomly selected. It was found that the somple mean is 4 with a standard deviation of 1.1.PERFORMANCE TASK NO. 2 Activity 4. Identifying Test Statistic Identify the appropriate form of test statistic in each item. 10 975 29018V aldss nobudhlalb ? ard 1. =28, X =25, o =5, n=43 mode 2957 2. = 43, X =48, s =4, n= 28 3. J = 79.34, X =: 82.28, s =5.78, n= 28 .sonsofinple to level erdt viit 4. J= 88, X = 87.46, s = 7.72, n=63 5. J = 38, X = 40, 6 =5, n = 77