Annie conducts a study to examine the differences in stress levels between pet owners and non-pet owners. She conducts a two-tailed test and tells that she rejected the null hypothesis. Therefore, which of these statements is true? Question 8 options:   Pet owners have more stress than non-pet owners.   Pet owners have less stress than non-pet owners.   Pet owners' and non-pet owners' stress levels differ, but it is not known how they differ.   Pet owners' and non-pet owners' stress levels do not differ.

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