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 significance 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? Human activity Natural patterns Don't know Male Female 296 319 144 159 73 69 Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. Ho The sex of the respondent H: The sex of the respondent Compute the test statistic. and the choice for the cause of global warming are independent. and the choice for the cause of global warming are dependent. (Round to three decimal places as needed.) Chi-square distribution table Area to the Right of the critical value Degrees of Freedom 0.995 0.99 0.975 0.95 0.90 0.10 0.05 0.025 0.01 0.005 1 0.001 0.004 0.016 2.706 3.841 5.024 6.635 7.879 2 0.010 0.020 0.051 0.103 0.211 4.605 5.991 7.378 9.210 10.597 0.072 0.115 0.216 0.352 0.584 6.251 7.815 9.348 11.345 12.838 4 0.207 0.297 0.484 0.711 1.064 7.779 9.488 11.143 5 0.412 0.554 0.831 1.145 1.610 9.236 11.071 6 0.676 0.872 1.237 1.635 2.204 10.645 12.592 7 0.989 1.239 1.690 2.167 2.833 12.017 12.833 15.086 14.449 14.067 16.013 8 1.344 1.646 2.180 2.733 3.490 13.362 13.277 14.860 16.750 16.812 18.548 18.475 20.278 15.507 17.535 20.090 21.955 9 1.735 2.088 2.700 3.325 4.168 14.684 16.919 19.023 21.666 23.589