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1) A factory manager collected a sample of 10 packets of 3-in-1 coffee and theweights (in grams) of each packet are recorded as follow: 2523262824

1) A factory manager collected a sample of 10 packets of 3-in-1 coffee and theweights (in grams) of each packet are recorded as follow:

2523262824

2126242527

Calculate

a) the mean weight of a packet of 3-in-1 coffee.

b) the sample standard deviation of the data collected.

c) find a 90% confidence interval for the weights of the 3-in-1 coffee.

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