Sugar is packed in 5-pound bags. An inspector suspects the bags may not contain

Question

Sugar is packed in 5-pound bags. An inspector suspects the bags may not contain 5 pounds. A sample of 62 bags produces a mean of 4.4 pounds and a standard deviation of 0.7 pound. Is there enough evidence to conclude that the bags do not contain 5 pounds as stated at alpha = 0.05 ? Also, find the 95% confidence interval of the true mean. Please round the z value to two decimal places and the bounds on the mean to one decimal place. Yes, there is enough evidence to support the claim that the bags do not weigh 5 pounds, and we can be 95% confident that 4.4

Explanation / Answer

z- value for this test is -6.75 95% confidence interval is (4.2,4.6) P-value is 0.000 Answer: D) Yes, there is enough evidence to support the claim thatthe bags do not weigh 5 pounds, and we can be 95% confident that4.2<<4.6

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