Discuss problem on prepackaged products

Assignment Help Basic Statistics

Reference no: EM131813500

Question: In a certain region prepackaged products labeled 500 g must contain on average at least 500 grams of the product, and at least 90% of all packages must weigh at least 490 grams. In a random sample of 300 packages, 288 weighed at least 490 grams.

a. Give a point estimate of the proportion of all packages that weigh at least 490 grams.

b. Verify that the sample is sufficiently large to use it to construct a confidence interval for that proportion.

c. Construct a 99.8% confidence interval for the proportion of all packages that weigh at least 490 grams.

Reference no: EM131813500

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