Andrea McReedy is a dispatcher for a local trucking company. She earns $52,600 per year. She is married and pays $2,430 in state income tax per year. She claims no other dependents. What is the state income tax rate for her state? (Use the table in Example 1)

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307