You measure 48 dogs weights and find they have a mean weight of 42 ounces Assume the population standard deviation is 2 8 ounces Based on this construct a 90 confidence interval for the true population mean dog weight Note you will use the z distribution for your critical valu since the population standard deviation is given Write your answer in the form of point estimate margin of error Give your answers as decimals to two places ounces Write your answer using inequality notation