Question

The birthweights in ounces of 9 randomly selected infants from New City Hospital were the following:

97, 168, 62, 120, 87, 117, 118, 133, 126

Infant weights are known to be normally distributed. with unknown mean of μ ounces and an unknown standard deviation σ ounces


f) Suppose W has a t distribution with 10 degrees of freedom. If P(W < t) = .04 then what is t?

g) Calculate the 96th percentile of a standard normal distribution.

h) Compute a 92% Confidence Interval for μ using your answers above.

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i) Compute a 92% Prediction Interval for a single future random mountain lion weight measurement using your answers above..

Answer 1