25 A manufacturer offers a 3 year warranty on its vacuum

Last updated: 4/2/2024

25 A manufacturer offers a 3 year warranty on its vacuum cleaners The vacuum cleaners have a mean lifespan of 4 5 years with a standard deviation of 0 5 years 3 marks a Determine the percentage of vacuum cleaners they would have to fix b If the company sold 100 000 vacuum cleaners how many would the company need to repair under warranty