I need help pls.. please help me to answer them all correctly for an upvote and positive ratings, thank you so much:)

plsss help meee. im having a hard time answering this module plsss help

NOTE: There is no references in my module maam/sir. so pls do understand. thank you

PERFORMANCE TASK NO. 4 A: Compute Mel Compute for the value of the appropriate test statistic based on the given information. 1. x = 48, Mo = 50.5, o = 3.8, and n = 35 2. x = 104, Mo = 98, s = 24, and n == 15 3. x = 15, Mo = 17.5, s = 5, and n = 80 4. x = 87, Mo = 85, o = 10, and n == 28 5. x = 158, Ho = 156.5, s = 20, and n = 18 as B: Solve It! Read the given problems and identify the appropriate test statistic to be used. Compute for the value of the test statistic then make a decision and a conclusion. 1. It is claimed that the average weight of female senior high school students is 42.5 kilograms with a standard deviation of 4 kilograms. If a random sample of 45 female senior high school students weighs an average of 40 kilograms, would you agree with the claim? Use a =: 0.01. 2. A school claims that the average performance of grade 11 students in the first semester is 85. A. random sample of 20 Grade 11 students were taken from the population and resulted to an average performance of 83.5 with a standard deviation of 5.2. Use a = 0.01 to determine if there is a reason to believe that the average performance of the Grade 11 students is actually less than 85