A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 signicance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? E Human activity Natural patterns Don't know Male 308 167 66 Female 311 138 70 Click here to View the chi-square distribution table. Identify the null and alternative hypotheses. H0: V and are H1: V and are l4 l4