A nationwide sample of influential Liberals and Conservatives was asked as a part of a comprehensive survey whether they favoured lowering environmental standards so that high-sulphur coal could be burned in coal-fired power plants. The results were: Liberals Conservatives Number sampled 634 329 Number in favour 90 65 At the 0.01 level of significance, can we conclude that there is a larger proportion of Conservatives in favour of lowering the standards? Calculate and interpret the pvalue. a. State the decision rule. (Round the final answer to 3 decimal places.) H0 is rejected ifz is more Othan 2.320 O. b. Compute the pooled proportion. (Round the final answer to 4 decimal places.) Pooled proportion 0.1610 0 c. Compute the value of the test statistic. (Negative answer should be indicated by a minus sign. Round the final answer to 2 decimal places.) Value of test statistic 2.23 6 d. What is your decision regarding the null hypothesis? Decision Do not reject a e. Calculate the pvalue. (Round the zvalue to 2 decimal places. Round the final answer to 4 decimal places.) pvalue is