A psychology graduate student wants to test the claim that there is a significant difference between the IQs of spouses. To test this claim, she measures the IQs of 9 married couples using a standard IQ test. The results of the IQ tests are listed in the following table. Using a 0.05 level of significance, test the claim that there is a significant difference between the IQs assuming that the population distribution of the paired differences is approximately normal. Let the spouse 1 group be Population 1 and let the spouse 2 group be Population 2. . IQs of Married Couples Spouse 130 -98 124 130 109 112 110 129 112 Spouse 128 100 2 126 135 112 115 114 133 113 Copy Data Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho : Ha = 0 Ha : Hd 0