Test: AP Statistics

A pretzel company advertises that their pretzels contain less than 1.0g of of sodium per serving. You take a simple random sample of 10 pretzel servings, and calculate that the mean amount of sodium is 1.20 g, with a standard deviation of 0.1 g.

1.

At the 95% confidence level, does your sample suggest that the pretzels actually have higher than 1.0g of sodium per serving?

No, because t=6.32 and p=0.99993153

No, because t=6.22 and p=0.96593153

Yes, because t= 6.32 and p=0.00006847

Yes, because t= 6.32 and p=0.00013694

No, because t=6.32 and p=0.00006847

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