A machine that makes hose fittings is set for a tolerance of (0.25 mathrm{~cm}) (i.e., the standard

Question:

A machine that makes hose fittings is set for a tolerance of \(0.25 \mathrm{~cm}\) (i.e., the standard deviation) and a mean diameter of \(12 \mathrm{~cm}\). A random sample of 12 fittings (in \(\mathrm{cm}\) ) is given in Table 4.7.

Find and interpret \(99 \%\) confidence intervals for both the population mean diameter and the population variance of the hose fittings.

Table 4.7

image text in transcribed

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: