New machine is producing a particular type of cloth

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The director of manufacturing at a clothing factory needs to determine whether a new machine is producing a particular type of cloth with s mean breaking strength of at least 70 pounds. a sample of 36 pieces of clothe shows a sample mean breaking strength of 69.1 pounds and a standard deviation of 3.5 pounds. use a 5% level of significance to test for a mean of at least 70 pounds

Reference no: EM13986005

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