The weight of a product is measured in pounds. A sample of 50 units is taken from a recent production. The sample yielded ![The weight of a product is measured in pounds. A sample of 50 units is taken from a recent production. The sample yielded = 75 lb, and we know that σ<sup>2</sup> = 100 lb. Calculate a 90 percent confidence interval for μ. A) [73.19, 76.81] B) [51.74, 98.26] C) [72.67, 77.33] D) [67.50, 82.50]](https://d2lvgg3v3hfg70.cloudfront.net/TB7056/11ead627_0a88_3a82_93a1_1f0ae4686049_TB7056_11.jpg)
= 75 lb, and we know that σ2 = 100 lb. Calculate a 90 percent confidence interval for μ.
A) [73.19, 76.81]
B) [51.74, 98.26]
C) [72.67, 77.33]
D) [67.50, 82.50]
Correct Answer:
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