You are analyzing the sample of Vitamin D Tablets in Exercise 14. The population standard deviation of the amount of Vitamin D in the tablets should be less than 0.50 thousand IUs. Does the confidence interval you constructed for σ suggest that the variation in the amounts of Vitamin D in the tablets is at an acceptable level? Explain your reasoning.

Data from Exercises 14

The quantity (in thousand IUs) of Vitamin D in 15 randomly selected supplement tablets are listed. Use a 95% level of confidence.

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5.256 5.218 5.236 4.813 4.998 5.011 5.861 4.121 4.343 5.863 5.791 5.011 4.985 4.862 5.682