The telephone company wants to investigate the desirability of beginning a marketing campaign that would offer customers the right to purchase an additional telephone line at a substantially reduced installation cost. The campaign will beinitiated if there is evidence that more than 20% of the customers would consider purchasing an additional telephone line if it were made available at a substantially reduced installation cost. A random sample of 500 households is selected. The results indicate that 95 of the households would purchase the additional telephone line at a reduced installation cost provide test statistics, p-value, Using a 0.05 level of significance, please provide the critical value for the appropriate test