Acarpenter has a board 18 1/2 feet long. he needs to cut as many 1 3/4 feet-long pieces as possible. how many pieces can the carpenter cut? explain how you how you found your answer

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?