A sample of 15 pneumatic thermostats intended for use in a centralized heating unit has an average
Question:
A sample of 15 pneumatic thermostats intended for use in a centralized heating unit has an average output pressure of \(9 \mathrm{psi}\) and a standard deviation of \(1.5 \mathrm{psi}\). Assuming the data may be treated as a random sample from a normal population, determine a \(90 \%\) confidence interval for the actual mean pressure of the thermostat.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Probability And Statistics For Engineers
ISBN: 9780134435688
9th Global Edition
Authors: Richard Johnson, Irwin Miller, John Freund
Question Posted: