In a random sample of 16 residents of the state of washington, the mean waste recycled per person per day was 2.8 pounds with a standard deviation of 0.24 pounds. determine the 80% confidence interval for the mean waste recycled per person per day for the population of washington. assume the population is approximately normal.

The required confidence interval would be (2.72,2.89)

Step-by-step explanation:

Since we have given that

Mean = 2.8 pounds

Standard deviation = 0.24 pounds

n = sample size = 16

We need to find the 80% confidence interval for the mean waste.

z=1.341

So, the confidence interval will be

Hence, the required confidence interval would be (2.72,2.89)

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step-by-step explanation: