Question

Soda Tak claims that Diet Tak has 40mg of sodium per can. You work for a consumer organization that tests such claims. You take a random sample of 60 cans and find that the mean amount of sodium in the sample is 42.4mg. The standard deviation in all cans is 7.2mg. You suspect that there is more than 40mg of sodium per can. Find the z-score.

0.2

2.582

2.727

5.143

Answer 1

@phi

Answer 2

@agent0smith

Answer 3

@cwrw238

Answer 4

@kewlgeek555

Answer 5

@whpalmer4

Answer 6

@surjithayer