Show your work!
- Evaluate manually and write/type it on the quiz document,
a) An outlier is a point more than ______________ IQR from either end of the box in a boxplot.
b) _________________ symbol represents the standard deviation of the population.
c) A numerical value used as a summary measure for a sample, such as sample mean, is known as a _________________________
a) The Federal Election Commission (FEC) collects information about campaign contributions and disbursements for candidates and political committees each election cycle. A political action committee (PAC) is a committee formed to raise money for candidates and campaigns. A Leadership PAC is a PAC formed by a federal politician (senator or representative) to raise money to help other candidates' campaigns. The FEC has reported financial information for 556 Leadership PACs that were operating during the 2011-2012 election cycle. A random selection of 26 Leadership PACs shows a mean of $251,854.23 with a sample standard deviation of $521,130.41. Use this information to construct a 96% confidence interval for the mean amount of money raised by all Leadership PACs during the 2011-2012 election cycle.
Table #2.3.7 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create, a scatter plot and state if there is a relationship between the value of the house and the annual rental income.
Question 4 (10 points)
Print-O-Matic printing company spends specific amounts on fixed costs every month. The costs of those fixed costs are in table #3.2.13.
a.) Find the mean and median.
b.) Find the range.
c.) Find the variance and standard deviation.