Suppose we have calculated a large sample confidence interval with 95% confidence level for population proportion and would prefer for our next confidence interval to have more precision (less spread out) without losing any confidence. In order to do this, we can (1 Point) 2. change the z-score value to a smaller number, b. take a larger sample. c. take a smaller sample. b. State whether the alternative hypothesis in the following scenario is one-sided or two-sided: "You need two-thirds majority in order to be selected to the executive board of the sports club of which you are a member. Your friend conducts a poll to see if there is evidence that you will be selected.". If majority percent is denoted by , construct the hypothesis(2 Points) life on the average of 1,000 hours.