Any help with those 3 questions?

If the alternative hypothesis is true in the population, then running the 2 points hypothesis test using a larger sample will increase the chance of the hypothesis test conclusion supporting the alternative hypothesis. O True False Suppose a car manufacturing company wants to know the mean height of 6 points all adults by creating a confidence interval. What sample size should be acquired to get a margin of error of 2, using a confidence level of 90%, and an assumed standard deviation of 13.2? The answer must be a number. Your answer If Ho: p = 0.6 vs. Ha: p # 0.6, which confidence interval gives the strongest 2 points evidence to reject the Ho. (0.59, 0.69) (0,61, 0.63) O (0.62, 0.72) (0,68, 0.88)