You are analyzing the sample of cough syrup bottles in Exercise 14. The population standard deviation of the volumes of the bottles’ contents should be less than 0.025 fluid ounce. Does the confidence interval you constructed for σ suggest that the variation in the volumes of the bottles’ contents is at an acceptable level? Explain your reasoning.

Data from Exercise 14:

The diameters (in inches) of 18 randomly selected bolts produced by a machine are listed. Use a 95% level of confidence.

Transcribed Image Text:

4.477 4.425 4.034 4.317 4.003 3.760 3.818 3.749 4.240 3.941 4.131 4.545 3.958 3.741 3.859 3.816 4.448 4.206