Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Draw a conclusion and interpret the decision.

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Step 2 of 3:

Compute the value of the test statistic. Round your answer to three decimal places.

Step 3 of 3:

Draw a conclusion and interpret the decision.

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
108
121
127
107
130
108
119
106
128
1
Spouse
104
121
129
107
126
104
116
102
123
2
Copy Data
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
Answer
E Tables
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Transcribed Image Text: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 108 121 127 107 130 108 119 106 128 1 Spouse 104 121 129 107 126 104 116 102 123 2 Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. Answer E Tables Кeyрad Keyboard Shortcuts
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