12.15 In Problem 11.7, we looked at the relationships between five dependent variables and the independent variable political ideology. In this problem, we’ll use income as an independent variable and assess its relationship with the same set of variables. For each table, calculate gamma. Describe the strength and direction of each relationship in a few sentences. Be careful in interpreting direction.

a. Support for same-sex marriage by income:

Income Same-Sex Marriage?

Less Than

$24,900

$24,900 to

$50,000 More Than

$50,000 Totals Favour 220 218 226 664 Oppose 366 299 250 915 Totals 586 517 476 1,579

b. Support for capital punishment by income:

Income Capital Punishment?

Less Than

$24,900

$24,900 to $50,000 More Than

$50,000 Totals Favour 567 574 552 1,693 Oppose 270 183 160 613 Totals 837 757 712 2,306

c. Approval of suicide for people with an incurable disease by income:
Income Right to Suicide?
Less Than $24,900 $24,900 to $50,000 More Than $50,000 Totals Favour 343 341 338 1,022 Oppose 227 194 147 568 Totals 570 535 485 1,590

d. Support for traditional gender roles by income:
Income Traditional Gender Roles?
Less Than $24,900 $24,900 to $50,000 More Than $50,000 Totals Favour 130 71 39 240 Oppose 448 479 461 1,388 Totals 578 550 500 1,628

e. Support for legalizing marijuana by income:
Income Legalize Marijuana?
Less Than $24,900 $24,900 to $50,000 More Than $50,000 Totals Favour 492 478 451 1,421 Oppose 85 68 53 206 Totals 577 546 504 1,627