Which equation is in point-slope form? A. y= 2.4 + 2.50
B. y - 4.90 = 2.4 (x - 1)
C. 24x - 10y = -25
D. y + 1 = 24 (x + 4.9)

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?