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On a can of sardines it is written that the can contains 10 sardines. You open...

On a can of sardines it is written that the can contains 10 sardines. You open up 100 cans and find the average is 10.25 sardines with a standard deviation of 1. What is the test statistic in a test of the null hypothesis that the population average is 10? Can you reject the null at the 5% significance level?

A. 2.5; yes

B. 2.5, no

C. 0.25; yes

D. 0.25; No

E. none of the above

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