You measure 38 watermelons' weights, and find they have a mean weight of 52 ounces. Assume the population standard deviation is 9.2 ounces. Based on this, what is the maximal margin of error...

You measure 38 watermelons' weights, and find they have a mean weight of 52 ounces. Assume the population standard deviation is 9.2 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean watermelon weight.


Give your answer as a decimal, to two places


±±  ounce