At the park a water fountain is mounted in the center of a square pool. The pool covers 225 square feet of ground. Which of the following represents the length of one side of the pool? (The area of a square with sides of lengths is s.)

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?