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anonymous

  • one year ago

In a sample of 50 households, the mean number of hours spent on social networking sites during the month of January was 45 hours. In a much larger study, the standard deviation was determined to be 8 hours. Assume the population standard deviation is the same. What is the 95% confidence interval for the mean hours devoted to social networking in January? The 95% confidence interval ranges from 8 to 45 hours. The 95% confidence interval ranges from 40.13 to 45.78 hours. The 95% confidence interval ranges from 43.87 to 46.13 hours. The 95% confidence interval ranges from 42.78 to 47.22 hours

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  1. anonymous
    • one year ago
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    @selena44 @slade @LegendarySadist @NeonStrawsForever @mastermindkakashi @ashontae19 @rnojito @Ricky-valencia @Rahammii @Robert136

  2. anonymous
    • one year ago
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    @Alex.

  3. anonymous
    • one year ago
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    @abb0t

  4. anonymous
    • one year ago
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    sorry bro

  5. anonymous
    • one year ago
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    @undeadknight26

  6. kropot72
    • one year ago
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    Do you know the formula for finding the confidence interval?

  7. anonymous
    • one year ago
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    what do u think

  8. anonymous
    • one year ago
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    I forgot it :'( But I think the answer is A

  9. anonymous
    • one year ago
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    i think A too

  10. anonymous
    • one year ago
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    Can you help me with a couple more please @slade?

  11. anonymous
    • one year ago
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    When critiquing an observational study, which four factors should be analyzed? Methodology, Results, Discussion, Conclusion Introduction, Results, Discussion, Conclusion Introduction, Methodology, Results, Discussion Methodology, Causes, Results, Discussion

  12. anonymous
    • one year ago
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    sure

  13. anonymous
    • one year ago
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    I think the answer to that is B or C

  14. anonymous
    • one year ago
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    i think C

  15. anonymous
    • one year ago
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    Cameron conducted an observational study to learn how finances affect happiness. He surveyed 700 people in his hometown and found that 80% say the more money they have, the more happiness they experience. What conclusion can Cameron draw from his study? Financial stability is the only factor that contributes to happiness. Financial stability results in happiness. There may be a link between financial stability and happiness. Happiness results in financial stability.

  16. anonymous
    • one year ago
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    I'm lost on this one.

  17. anonymous
    • one year ago
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    idk this one srry but @DanJS could problely help

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