Question

You measure 24 turtles' weights, and find they have a mean weight of 72 ounces. Assume the population standard deviation is 12.7 ounces. Based on this, what is the maximal margin of error associated with a 95% confidence interval for the true population mean turtle weight.

Give your answer as a decimal, to two places

±±  ounces

Answer 1

Answer:

Given that:

You measure 24 turtles' weights, and find they have a mean weight of 72 ounces. Assume the population standard deviation is 12.7 ounces.

We are given

Sample size  n = 24

Sample mean = 72

Population standard deviation = 12.7

Confidence level = 95%

So, critical Z value = 1.96

Maximal margin of error

Maximal margin of error E= 5.09 ounces