The stewart aviation products company has been successfully

Reference no: EM13614320

The Stewart Aviation Products Company has been successfully manufacturing aircraft al- timeters with errors normally distributed with a mean of 0 ft (achieved by calibration) and a standard deviation of 43.7 ft. After the installation of new production equipment, 30 altime- ters were randomly selected from the new line. This sample group had errors with a standard deviation of s = 54.7 ft. Use a 0.10 significance level to test the claim that the new altimeters have a standard deviation different from the old value of 43.7 ft

Reference no: EM13614320

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