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A manufacturer of banana chips would like to know whether its bag filling machine works correctly...

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 446 gram setting. Based on a 26 bag sample where the mean is 450 grams and the variance is 900, is there sufficient evidence at the 0.01 level that the bags are overfilled? Assume the population distribution is approximately normal.

Step 1 of 5 : State the null and alternative hypotheses.

solve all 5 steps please!

Math   Statistics-And-Probability   
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