Final answer:
The percentage of employees who dislike presenting in front of large groups cannot be answered without specific data. Approximately 40 percent of Americans reportedly fear public speaking, which could loosely correlate. Most laws are passed with a simple majority vote.
Step-by-step explanation:
The question regarding the percentage of employees who don't like to go up in front of large groups does not provide sufficient information to determine a specific answer. However, it's worth noting that Toastmasters International cites a report by Gallup Poll indicating that approximately 40 percent of Americans fear public speaking. This statistic might suggest that a similar proportion might dislike presenting in front of large groups, but without specific research or data about employees, we cannot assert this as a factual answer to the student's question.
when it comes to the hypothesis test mentioned in the provided information, a student found that 135 out of 361 schoolmates feared public speaking. This amounts to about 37.4%, which is less than the 40% cited by the Gallup Poll. A formal hypothesis test could be conducted to determine if this is statistically significant.
Regarding the percentage of laws required to pass, most ordinary laws require a simple majority, which can be either 50 percent or 50 percent plus 1 vote, depending on the rules of the legislative body.
As for the confidence interval question, one would need additional information such as the sample size and the number of students in favor of the legislation to compute a 90 percent confidence interval.
Finally, the percentage of countries with a unicameral legislature is not specified in the question. Typically, the answer would be found through geographical or political research rather than mathematical calculation.