In: Statistics and Probability
To test the accuracy of the micrometer, the wire thickness was
measured 60 times and an empirical standard deviation of 0.05 mm
was obtained. Assuming that the distribution of measurement errors
is normal, examine at the significance level 0.05 the hypothesis
that the micrometer measures with an accuracy of 0.04 mm.
a) The test statistics with the relevant test is:
b) At the significance level of 0.05 WE REJECT / WE DO NOT REJECT
H0