Classmates Isabella, Destiny, and Jana each received $500 as a graduation gift. Isabella deposits her money in an account that earns 8% interest compounded annually and keeps the money in the account
for three years. Destiny deposits her money, plus an extra $50, in an account that earns 9% interest
compounded annually and keeps the money in the account for two years. Jana deposits her money in an
account that earns 7% compounded annually and keeps the money in the account for one year. Who has
the most money when they close their accounts and why?

1. Destiny has the most because the interest is the highest.
2. Jana has the most because she invested the most.
3. Isabella has the most because she kept money in the longest.
4. They all make the same amount

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

Which of the following will form the composite function?

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: