A quality engineer wanted to be 98% confident that the maximum error of the estimate of the mean strength, , of the left hinge on a vanity cover molded by a machine is 0.25. A preliminary sample of size n = 32 parts yielded a sample mean of x = 35.68 and a standard deviation of s = 1.723. (a) How large a sample is required? (b) Does this seem to be a reasonable sample size? (Note that destructive testing is needed to obtain the data.)

I have a passion for learning. I have prior work history in retail, entertainment and childcare and want to expand my knowledge and learn basic restaurant operations. My last job was heavily based on working in teams and providing excellent customer service. Working within groups or teams has taught me valuable skills in communicating and learning how to work with other for a common goal. The thing...