A fund manager wants to know if it is equally likely that the Dow Jones Industrial Average will go up each day of the week. For each day of the week, the fund manager observes the following number of days when the Dow Jones Industrial Average goes up. Day of the Week Monday Tuesday Wednesday Thursday Friday Observed 192 189 202 199 218 Using the p-value approach and a = 005, the decision and conclusion are do not reject the null hypothesis, all of the proportions are the same do not reject the null hypothesis, we cannot conclude that not all of the proportions are the same reject the null hypothesis not all of the proportions are the same reject the null hypothesis, all of the proportions are not the same