STATISTICS AND PROBABILITY

Let's Exercise 7.2 TRY! One Sample t-test with Unknown Sample Mean and Sample Standard Deviation Solve: The national average weight in NCR of Male Grade 11 students is 62 kg. A random sample of 10 students in Quezon City is asked about their weight. At a = 0.10, is there enough evidence that the average weight of the 10 students is different from the national average? 55.5 63.2 61.8 54.2 67.1 62.1 64.3 65.5 81.3 72.3 The weight of the 10 students (in kilograms). Solution: State the null and alternative hypothesis. Determine the type of test to be used. a = df = terit = Solve for the sample mean and sample standard deviation. X X - X ( x - X)