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D Question 3 1 pts If we reject the null hypothesis, we conclude that: O the test is statistically insignificant at whatever level of significance the test was conducted. O there is enough statistical evidence to infer that the null hypothesis is true. O there is not enough statistical evidence to infer that the alternative hypothesis is true. O there is enough statistical evidence to infer that the alternative hypothesis is true D Question 4 1 pts A portfolio manager was analyzing the price-earnings ratio for this year's performance. His boss said that the average price-earnings ratio was 20 for the many stocks, which his firm had traded. The portfolio manager though that the price earnings ration was some other value and randomly selected a sample of 50 P/E ratios, found a mean of 18.17 and standard deviation of 4.60. Assume that the population is normally distributed and test at the 0.01 level of significance. The correct hypotheses are: Ho: u = 18.7 Ha: u * 18.7 True O FalseD Question 1 1 Day, 9 Hours, 6 Minut 1 pts Seconds Suppose that we reject a null hypothesis at the .05 level of significance. Then for which of the following values do we also reject the null hypothesis? 0 .06 O .04 O .03 O .02 D Question 2 1 pts Consider testing the hypotheses Ho: U - 50 vs. Ha: u # 50. If n = 64, sample mean - 53.5, and s = 10, then the value of the test statistic is: O 1.96 O 1.64 O 2.80 O -2.80