Current Attempt in Progress Find the p-value based on a standard normal distribution for each of the following standardized test statistics. (a) z = -1.04 for a left tail test for a mean Round your answer to three decimal places. p-value = eTextbook and Media Assistance Used e Textbook (b) z = 4.16 for a right tail test for a proportion Round your answer to three decimal places. p-value = 0.000 eTextbook and Media(c) z = -1.60 for a two-tailed test for a difference in means Round your answer to three decimal places. p-value = eTextbook and Media