You need to use this question for the first 5 questions.

Prob/Stat Through 6E Test Show all work. Round answers to the nearest hundredth when necessary LT 6C My Score Use the following to answer all questions in LT 6C. A manufacturer claims that only 5% of their products are defective. A store takes delivery of 400 items from the manufacturer. Let X = the number of defective items. I 1. Calculate the mean and standard deviation of the sampling distribution of X. 2. Interpret the standard deviation from #1