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A manufacturer claims that the mean weight of flour in its 32-ounce bags is its 32.1...

A manufacturer claims that the mean weight of flour in its 32-ounce bags is its 32.1 ounces. A T-Test is performed to determine whether the mean weight is actually less than this. The mean weight for a random sample of 45 bags of flour was 30.7 ounces with a standard deviation of 2.5 ounces. Test the claim at the 5% significance level.

a) Check the assumptions:

b) Hypotheses (State in symbols and in words): Ho: Ha:

c) Test Statistic: ___________________

d) Sketch:e) P-Value: ___________________

f) Conclusion:

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