Suppose a large labor union wishes to estimate the mean number of hours per month a union member is absent from work. The union decides to sample 496 of its members at random and monitor the working time of each of them for 1 month. At the end of the month, the total number of hours absent from work is recorded for each employee. Which of the following should be used to estimate the parameter of interest for this problem? a) A small sample confidence interval for μ.
b) A large sample confidence interval for p.
c) A small sample confidence interval for p. d) A large sample confidence interval for μ.=

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Need on this geometry question. explain how you did it.

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.