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anonymous

  • one year ago

The difference of sample means of two populations is 108.7, and the standard deviation of the difference in sample means is 32. Which statement is true if we are testing the null hypothesis at the 68% confidence level? The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be accepted. The difference of the two means is not significant at the 68% confidence level, so the null hypothesis must be rejected.

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  1. anonymous
    • one year ago
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    and the last option says The difference of the two means is not significant at the 68% confidence level, so the null hypothesis must be accepted.

  2. anonymous
    • one year ago
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    @undeadknight26

  3. undeadknight26
    • one year ago
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    I would say A...Not 100% sure though

  4. anonymous
    • one year ago
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    I just guessed D and it was wrong so I'm not sure. I thought it was B

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