In a process that manufactures tungsten-coated silicon wafers, the target resistance for a wafer is (85 mathrm{~m}

Question:

In a process that manufactures tungsten-coated silicon wafers, the target resistance for a wafer is $85 \mathrm{~m} \Omega$. In a simple random sample of 50 wafers, the sample mean resistance was $84.8 \mathrm{~m} \Omega$ and the standard deviation was $0.5 \mathrm{~m} \Omega$. Is it plausible that the mean is on target?

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