a random sample of 8 recent college graduates found that starting salaries for architects in new york city had a mean of $42,653 and a standard deviation of $9,114. construct a 95% confidence interval for the average starting salary of all architects in the city.

Arecycling company gives you 5 cents for every plastic bottle and 10 cents for every glass bottle. from a certain individual the recycling company received 59 bottles and paid $4.55. how many glass bottles did the individuals recycle?

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.