A certain state uses the following progressive tax rate for calculating individual income tax: Income Range ($) Progressive Tax Rate
0-3000 2%
3001-5000 3%
5001-17,000 5%
17,001 and up 5.75%
Calculate the state income tax owed on a $50,000 per year salary.
tax = $[ ]
Round your answer to the nearest whole dollar amount.
*NEED HELP ASAP!*

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?