Uan ramirez sells suits in a major department store on weekends. he earns a commission of 5% on the first 10 suits he sells. if he sells more than 10, he earns another 3% on the additional suits. last weekend juan sold 13 suits priced at $250 each. what was his commission?

a. $185.00
b. $147.50
c. $260.00
d. $210.40

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?