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A psychology researcher who does work in creativity wants to determine whether her sample of 50-year-old...

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Statistics

  1. A psychology researcher who does work in creativity wants todetermine whether her sample of 50-year-old adults (N =150) differs statistically from the population of 50-year-olds inintelligence. For her sample, she calculates the following: Mean =109, SD = 10. (Hint: By definition, the mean IQ of this populationis 100 and the population standard deviation is 15. Another hint:Use the z-test here!)
    1. Null hypothesis:
    2. Alternative hypothesis:
    3. Statistical test (You can’t miss this one!):
    4. Significance level (I’ll pick it for you; alpha = .05)
    5. Critical region for rejecting null hypothesis:
    6. Calculate the statistic (please show your work):
    7. Decision:

Answer & Explanation Solved by verified expert
3.8 Ratings (607 Votes)
AH0 Null Hypothesis 100BHA Alternative Hypothesis 100CStatistical test Hypothesis test of one sample Z test    See Answer
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