Question: Potato chips are packed into packet using an automated process. Target weight of a packet is 150 grams Standard deviation of weight is 0.5 gm

Potato chips are packed into packet using an automated process. Target weight of a packet is 150 grams Standard deviation of weight is 0.5 gm In order to improve the packaging process, the company has taken up a project 6 packets were weighed before start of the project. These are 151.5 152.4, 150.4, 151.8, 152.4, 151.6. After the project was completed, 12 packets were weighed. The data are given below,

151.0

1508

1492

1502

1511

151,5

150.7 149.3 150.5 150.6 1508 151.4

Test at 5% level of significance if there is any change in packet weight

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