A company wants to estimate the mean time (in hours) per week for an adult who…

A company wants to estimate the mean time (in hours) per week for an adult who uses computers at home. Find the minimum sample size needed in order to construct a 97% confidence interval for the mean time of computer usage at home for an adult, to within 0.25 hours. The company assumes σ is 1 hour. 76 O 15 O 97 o 19 O 57