UHON Research Group has tested the hypotheses regarding the IQ of university honor students. They provided the following information.
?
H0: µ ? 144Ha: µ > 144 (Genius)Sample size n = 121
Sample mean = 145
p-value = .0054
a.Using ? = .015, would you reject or not reject the null hypothesis? Explain how you arrived at your answer and what you can conclude about the IQ scores of UHON students?b.The researchers failed to report the standard deviation. Determine the standard deviation. Use the normal distribution table to answer this question and show your complete work.
What will be an ideal response?
| a. | Reject H0 because p-value = .0054 <? = .015. It can be concluded that the population mean IQ score of UHON students is more than 144. |
| b. | ? p-value = .0054 results in test statistic value = 2.55 Solving 2.55 = |
gives s = 4.314 (rounded)You might also like to view...
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