The lengths, in inches, of adult corn snakes are normally distributed with a population standard deviation of 6 inches and an unknown population mean. if a random sample of 18 snakes is taken and results in a sample mean of 61 inches, find the margin of error (me) of the confidence interval with a 90% confidence level. round your answer to three decimal places.

2.460

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

Given : Sample size : n= 18

Level of confidence = 0.90

Significance level :

Using the t-distribution table ,

Critical value :

Standard deviation:

Then, we have

Hence, the margin of error (ME) of the confidence interval with a 90% confidence level = 2.460

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step-by-step explanation: