Toasty Tortilla Company has two different manufacturing plants. Company officials want to test whether each plant fills the bags with the same number of ounces. A random sample of tortilla bags from plant A had a mean of 24.2 ounces in each bag. A random sample from plant B had a mean of 23.2 ounces. They randomized the data over 100 trials and the difference of means for each trial is shown in the dot plot below. What can Toasty Tortilla Company conclude from this study?

Question

sleepyjess · Answer

The difference is significant because a difference of 1.0 is very likely.
The difference is significant because a difference of 1.0 is not very likely.
The difference is not significant because a difference of 1.0 is very likely.
The difference is not significant because a difference of 1.0 is not very likely.

sleepyjess · Answer

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anonymous · Answer

I think its A

sleepyjess · Answer

@phi

phi · Answer

according to the bell curve, the difference could be as low as -2.5 and as high as +2.5
and most are near 1 or 0

phi · Answer

they tell you A had a mean of 24.2  and  B had a mean of 23.2 , and the difference is 1

according to the graph,  it is not significant ... in other words, if you do another test, you might get a difference anywhere between 2.5 and -2.5.