14

On average is the younger sibling's IQ different from the older sibling's IQ? Ten sibling pairs were given IQ tests. The data are shown below. IQ Scores Younger 93 93 104 110 113 86 107 104 79 96 Sibling Older 84 96 94 97 108 84 105 96 81 87 Sibling Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer |Select an answer v (please enter a decimal) H1: Select an answer v Select an answer v Select an answer v| (Please enter a decimal) b. The test statistic ? v = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? v a e. Based on this, we should |Select an answer v | the null hypothesis. f. Thus, the final conclusion is that ... The results are statistically insignificant at a = 0.01, so there is insufficient evidence to conclude that the population mean IQ score for younger siblings is not the same as the population mean IQ score for older siblings. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude what thecom