C. A new website claims that participants will improve their IQ score after completing their online...

Transcribed Image Text:

C. A new website claims that participants will improve their IQ score after completing their online modules Let Population 1 = IQ score before the modules/ Population 2 = IQ score after the modules. (10points) A B C D E Formula Bar G 1 Person Before After t-Test: Paired Two Sample for Means 2 3 4 5 6 7 8 9 1234567 127 130 98 105 Before After 110 108 Mean 109.625 111.625 105 108 Variance 118.268 110.554 122 122 Observations 8 8 109 117 Pearson Correlation 0.90812 111 105 Hypothesized Mean Difference 8 95 98 df 0 7 10 t Stat -1.23025 11 P(T C. A new website claims that participants will improve their IQ score after completing their online modules Let Population 1 = IQ score before the modules/ Population 2 = IQ score after the modules. (10points) A B C D E Formula Bar G 1 Person Before After t-Test: Paired Two Sample for Means 2 3 4 5 6 7 8 9 1234567 127 130 98 105 Before After 110 108 Mean 109.625 111.625 105 108 Variance 118.268 110.554 122 122 Observations 8 8 109 117 Pearson Correlation 0.90812 111 105 Hypothesized Mean Difference 8 95 98 df 0 7 10 t Stat -1.23025 11 P(T