Question

In a collection of Easter candy, a sample of 16 chocolate bunnies has a mean weight of 8.02 ounces and a standard deviation of 1.16 ounces. We seek to make a 95% confidence interval for the mean weight of all chocolate bunnies from which the sample was taken.

Now suppose that a sample of 64 bunnies has the same mean and standard deviation as the previous sample.

A. How many degrees of freedom should be used for Student's t distribution?

B. What is the critical value of t for 95% confidence and the nearest number of degrees of freedom in the chart? Give the bounds for the 95% confidence interval for the population mean, to two decimal places

. C. Lower bound:

D. Upper bound:

Answer 1