A 95% confidence interval for the difference of the mean number of times Golden Retriever dogs bark per day and the number of times Labrador dogs barks per day over a 12-month period [µ(Golden Retriever) − µ(Labrador)] is calculated to be (−2.13, 3.47). Therefore, it can be concluded that: Question 12 options: the sample is too small to come to any conclusion. a confidence interval cannot contain negative and positive values; no conclusion can be drawn. Golden Retrievers barking more often than Labradors is highly likely, since the interval contains more positive than negative values. Golden Retrievers and Labradors bark equally often, on average, because the confidence interval contains zero.
A 95% confidence interval for the difference of the mean number of times Golden Retriever dogs bark per day and the number of times Labrador dogs barks per day over a 12-month period [µ(Golden Retriever) − µ(Labrador)] is calculated to be (−2.13, 3.47). Therefore, it can be concluded that:
Question 12 options:
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the sample is too small to come to any conclusion. |
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a confidence interval cannot contain negative and positive values; no conclusion can be drawn. |
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Golden Retrievers barking more often than Labradors is highly likely, since the interval contains more positive than negative values. |
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Golden Retrievers and Labradors bark equally often, on average, because the confidence interval contains zero. |
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