A local shoe store is having a clearance sale on their summer shoes. The table below shows the sale price of each type of shoe. Clearance Sale... Type of Shoe... Sale Price... Flip Flops $0.99... Sneakers... $6.49... Flats $7.19... A customer bought 2 pairs of sneakers, 1 pair of flip-flops, and 1 pair of flats. The sales tax was $1.75. How much change did the customer receive from $30.00? A. $13.58 A. $13.58 B. $21.16 B. , $21.16, C. $7.09 C. $7.09 D. $22.91

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?