Question

A sugar box manufacturing company is accurately making 100 g packets. Suppose a business researcher randomly selects 100 boxes, weighs each of them and computes its mean. Due to non-random selection or by chance, a researcher selects packets that have not been adequately filled and that is how he gets the mean weight of 98 g, which falls in the rejection region.

Answer 1

H0: mu = 100

Ha: mu < 100

here we reject the null hypothesis and conclude that the mean weight is less than 100 though it is actually 100g

This is type I error because we incorrectly rejected the null hypothesis

option B