From a sample of 400 items, 14 are found to be defective. Th…

From a sample of 400 items, 14 are found to be defective. The point estimate of the population proportion defective will be: [Formula: Sampling distribution of the sample proportion  p ^ = x n         E ( P ^ ) = p         σ p ^ = p ( 1 – p ) n         z = p ^ – p p ( 1 – p ) n