2. A Filipino household spends an average of P333 per day, according to a survey released by the National Economic Development Authority (NEDA) last year. You randomly selected 15 homes and calculated the amount of their daily budget, finding a mean of P400 and a standard deviation of 100. Can it be inferred that the average amount spent per day by a Filipino household has grown at the 0.01 level of significance? Assume that the population is normal. Solution: Given: X = H = 330 s = n =_ _df =_ Step 1: Ho: H= Ha: H # Step 2: Determine the test statistic, then compute its value. Since n